158623972 has 24 divisors (see below), whose sum is σ = 300529152. Its totient is φ = 72823200.

The previous prime is 158623961. The next prime is 158623981. The reversal of 158623972 is 279326851.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1947 + ... + 17917.

It is an arithmetic number, because the mean of its divisors is an integer number (12522048).

Almost surely, 2^158623972 is an apocalyptic number.

It is an amenable number.

158623972 is a deficient number, since it is larger than the sum of its proper divisors (141905180).

158623972 is a wasteful number, since it uses less digits than its factorization.

158623972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16179 (or 16177 counting only the distinct ones).

The product of its digits is 181440, while the sum is 43.

The square root of 158623972 is about 12594.6009067378. The cubic root of 158623972 is about 541.3227426335.

The spelling of 158623972 in words is "one hundred fifty-eight million, six hundred twenty-three thousand, nine hundred seventy-two".