138056967 has 10 divisors (see below), whose sum is σ = 206233368. Its totient is φ = 92037924.

The previous prime is 138056929. The next prime is 138056999. The reversal of 138056967 is 769650831.

It is a happy number.

138056967 is a `hidden beast` number, since 1 + 3 + 80 + 569 + 6 + 7 = 666.

It is not a de Polignac number, because 138056967 - 2⁶ = 138056903 is a prime.

It is a super-2 number, since 2×138056967² = 38119452274478178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138056267) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 852123 + ... + 852284.

Almost surely, 2^138056967 is an apocalyptic number.

138056967 is a deficient number, since it is larger than the sum of its proper divisors (68176401).

138056967 is an equidigital number, since it uses as much as digits as its factorization.

138056967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704419 (or 1704410 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 138056967 is about 11749.7645508325. The cubic root of 138056967 is about 516.8360230567.

The spelling of 138056967 in words is "one hundred thirty-eight million, fifty-six thousand, nine hundred sixty-seven".