139355832 has 128 divisors (see below), whose sum is σ = 440732160. Its totient is φ = 35665920.

The previous prime is 139355791. The next prime is 139355833. The reversal of 139355832 is 238553931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139355833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134388 + ... + 135420.

It is an arithmetic number, because the mean of its divisors is an integer number (3443220).

Almost surely, 2^139355832 is an apocalyptic number.

139355832 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 139355832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220366080).

139355832 is an abundant number, since it is smaller than the sum of its proper divisors (301376328).

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

139355832 is a wasteful number, since it uses less digits than its factorization.

139355832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133 (or 1129 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 139355832 is about 11804.9071152636. The cubic root of 139355832 is about 518.4517954744.

The spelling of 139355832 in words is "one hundred thirty-nine million, three hundred fifty-five thousand, eight hundred thirty-two".