138810652 has 12 divisors (see below), whose sum is σ = 243239920. Its totient is φ = 69313536.

The previous prime is 138810649. The next prime is 138810701. The reversal of 138810652 is 256018831.

It is a congruent number.

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, 19488 + ... + 25639.

Almost surely, 2^138810652 is an apocalyptic number.

It is an amenable number.

138810652 is a deficient number, since it is larger than the sum of its proper divisors (104429268).

138810652 is a wasteful number, since it uses less digits than its factorization.

138810652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45900 (or 45898 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 138810652 is about 11781.7932421173. The cubic root of 138810652 is about 517.7748259796.

The spelling of 138810652 in words is "one hundred thirty-eight million, eight hundred ten thousand, six hundred fifty-two".