139234032 has 160 divisors (see below), whose sum is σ = 468303360. Its totient is φ = 38776320.

The previous prime is 139234031. The next prime is 139234049. The reversal of 139234032 is 230432931.

It is a happy number.

It is a super-2 number, since 2×139234032² = 38772231333954048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 139233987 and 139234005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139234031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123423 + ... + 124545.

It is an arithmetic number, because the mean of its divisors is an integer number (2926896).

Almost surely, 2^139234032 is an apocalyptic number.

139234032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139234032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234151680).

139234032 is an abundant number, since it is smaller than the sum of its proper divisors (329069328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139234032 is a wasteful number, since it uses less digits than its factorization.

139234032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 139234032 is about 11799.7471159343. The cubic root of 139234032 is about 518.3007054336.

Adding to 139234032 its reverse (230432931), we get a palindrome (369666963).

It can be divided in two parts, 13923 and 4032, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 139234032 in words is "one hundred thirty-nine million, two hundred thirty-four thousand, thirty-two".