138465927 has 12 divisors (see below), whose sum is σ = 200109000. Its totient is φ = 92263248.

The previous prime is 138465919. The next prime is 138465937. The reversal of 138465927 is 729564831.

138465927 is a `hidden beast` number, since 13 + 8 + 46 + 592 + 7 = 666.

It is not a de Polignac number, because 138465927 - 2³ = 138465919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138465937) 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, 29293 + ... + 33689.

It is an arithmetic number, because the mean of its divisors is an integer number (16675750).

Almost surely, 2^138465927 is an apocalyptic number.

138465927 is a deficient number, since it is larger than the sum of its proper divisors (61643073).

138465927 is a wasteful number, since it uses less digits than its factorization.

138465927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7902 (or 7899 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 138465927 is about 11767.1545838406. The cubic root of 138465927 is about 517.3458534101.

The spelling of 138465927 in words is "one hundred thirty-eight million, four hundred sixty-five thousand, nine hundred twenty-seven".