139238032 has 20 divisors (see below), whose sum is σ = 271747116. Its totient is φ = 69109760.

The previous prime is 139238003. The next prime is 139238063. The reversal of 139238032 is 230832931.

It can be written as a sum of positive squares in 2 ways, for example, as 85303696 + 53934336 = 9236^2 + 7344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 139237985 and 139238003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29569 + ... + 33952.

Almost surely, 2^139238032 is an apocalyptic number.

It is an amenable number.

139238032 is a deficient number, since it is larger than the sum of its proper divisors (132509084).

139238032 is a wasteful number, since it uses less digits than its factorization.

139238032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63666 (or 63660 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 139238032 is about 11799.9166098748. The cubic root of 139238032 is about 518.3056687388.

The spelling of 139238032 in words is "one hundred thirty-nine million, two hundred thirty-eight thousand, thirty-two".