139007232 has 432 divisors, whose sum is σ = 538634880. Its totient is φ = 34504704.

The previous prime is 139007221. The next prime is 139007233. The reversal of 139007232 is 232700931.

It is a tau number, because it is divible by the number of its divisors (432).

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 = 139007196 and 139007205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139007233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8176888 + ... + 8176904.

It is an arithmetic number, because the mean of its divisors is an integer number (1246840).

Almost surely, 2^139007232 is an apocalyptic number.

139007232 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 139007232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269317440).

139007232 is an abundant number, since it is smaller than the sum of its proper divisors (399627648).

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

139007232 is a wasteful number, since it uses less digits than its factorization.

139007232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 139007232 is about 11790.1328236793. The cubic root of 139007232 is about 518.0191303937.

The spelling of 139007232 in words is "one hundred thirty-nine million, seven thousand, two hundred thirty-two".