139660032 has 144 divisors (see below), whose sum is σ = 415013760. Its totient is φ = 41435136.

The previous prime is 139660019. The next prime is 139660039. The reversal of 139660032 is 230066931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (139660039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247783 + ... + 248345.

It is an arithmetic number, because the mean of its divisors is an integer number (2882040).

Almost surely, 2^139660032 is an apocalyptic number.

139660032 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 139660032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207506880).

139660032 is an abundant number, since it is smaller than the sum of its proper divisors (275353728).

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

139660032 is a wasteful number, since it uses less digits than its factorization.

139660032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 139660032 is about 11817.7845639528. The cubic root of 139660032 is about 518.8287643116.

The spelling of 139660032 in words is "one hundred thirty-nine million, six hundred sixty thousand, thirty-two".