138162156 has 36 divisors (see below), whose sum is σ = 354353496. Its totient is φ = 41866880.

The previous prime is 138162151. The next prime is 138162217. The reversal of 138162156 is 651261831.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (138162151) 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, 46125 + ... + 49028.

Almost surely, 2^138162156 is an apocalyptic number.

It is an amenable number.

138162156 is an abundant number, since it is smaller than the sum of its proper divisors (216191340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138162156 is a wasteful number, since it uses less digits than its factorization.

138162156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95182 (or 95169 counting only the distinct ones).

The product of its digits is 8640, while the sum is 33.

The square root of 138162156 is about 11754.2399158772. The cubic root of 138162156 is about 516.9672530941.

The spelling of 138162156 in words is "one hundred thirty-eight million, one hundred sixty-two thousand, one hundred fifty-six".