138267932 has 12 divisors (see below), whose sum is σ = 263966136. Its totient is φ = 62849040.

The previous prime is 138267931. The next prime is 138267947. The reversal of 138267932 is 239762831.

138267932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 138267932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138267931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571183 + ... + 1571270.

It is an arithmetic number, because the mean of its divisors is an integer number (21997178).

Almost surely, 2^138267932 is an apocalyptic number.

It is an amenable number.

138267932 is a deficient number, since it is larger than the sum of its proper divisors (125698204).

138267932 is a wasteful number, since it uses less digits than its factorization.

138267932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142468 (or 3142466 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The square root of 138267932 is about 11758.7385377854. The cubic root of 138267932 is about 517.0991483028.

The spelling of 138267932 in words is "one hundred thirty-eight million, two hundred sixty-seven thousand, nine hundred thirty-two".