158164772 has 12 divisors (see below), whose sum is σ = 276949680. Its totient is φ = 79036296.

The previous prime is 158164771. The next prime is 158164789. The reversal of 158164772 is 277461851.

158164772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (158164771) 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, 3122 + ... + 18057.

It is an arithmetic number, because the mean of its divisors is an integer number (23079140).

Almost surely, 2^158164772 is an apocalyptic number.

It is an amenable number.

158164772 is a deficient number, since it is larger than the sum of its proper divisors (118784908).

158164772 is a wasteful number, since it uses less digits than its factorization.

158164772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23050 (or 23048 counting only the distinct ones).

The product of its digits is 94080, while the sum is 41.

The square root of 158164772 is about 12576.3576603085. The cubic root of 158164772 is about 540.7998799718.

The spelling of 158164772 in words is "one hundred fifty-eight million, one hundred sixty-four thousand, seven hundred seventy-two".