138762152 has 8 divisors (see below), whose sum is σ = 260179050. Its totient is φ = 69381072.

The previous prime is 138762131. The next prime is 138762179. The reversal of 138762152 is 251267831.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 87123556 + 51638596 = 9334^2 + 7186^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×138762152² = 38509869655342208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8672627 + ... + 8672642.

Almost surely, 2^138762152 is an apocalyptic number.

It is an amenable number.

138762152 is a deficient number, since it is larger than the sum of its proper divisors (121416898).

138762152 is a wasteful number, since it uses less digits than its factorization.

138762152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17345275 (or 17345271 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 138762152 is about 11779.7348017687. The cubic root of 138762152 is about 517.7145159962.

The spelling of 138762152 in words is "one hundred thirty-eight million, seven hundred sixty-two thousand, one hundred fifty-two".