139639104 has 84 divisors (see below), whose sum is σ = 436656480. Its totient is φ = 42312960.

The previous prime is 139639099. The next prime is 139639109. The reversal of 139639104 is 401936931.

139639104 is a `hidden beast` number, since 1 + 3 + 9 + 639 + 10 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (139639099) and next prime (139639109).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139639109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4684 + ... + 17355.

Almost surely, 2^139639104 is an apocalyptic number.

It is an amenable number.

139639104 is an abundant number, since it is smaller than the sum of its proper divisors (297017376).

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

139639104 is a wasteful number, since it uses less digits than its factorization.

139639104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22068 (or 22055 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 139639104 is about 11816.8990856316. The cubic root of 139639104 is about 518.8028475893.

The spelling of 139639104 in words is "one hundred thirty-nine million, six hundred thirty-nine thousand, one hundred four".