138910696 has 32 divisors (see below), whose sum is σ = 271074600. Its totient is φ = 66653440.

The previous prime is 138910663. The next prime is 138910699. The reversal of 138910696 is 696019831.

138910696 = T₂₅₁ + T₂₅₂ + ... + T₉₄₆.

138910696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 126562500 + 12348196 = 11250^2 + 3514^2 .

It is not an unprimeable number, because it can be changed into a prime (138910699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38406 + ... + 41866.

Almost surely, 2^138910696 is an apocalyptic number.

It is an amenable number.

138910696 is a deficient number, since it is larger than the sum of its proper divisors (132163904).

138910696 is a wasteful number, since it uses less digits than its factorization.

138910696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669 (or 3665 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 138910696 is about 11786.0381808307. The cubic root of 138910696 is about 517.8991868130.

The spelling of 138910696 in words is "one hundred thirty-eight million, nine hundred ten thousand, six hundred ninety-six".