158977938 has 32 divisors (see below), whose sum is σ = 364363776. Its totient is φ = 45299088.

The previous prime is 158977933. The next prime is 158977957. The reversal of 158977938 is 839779851.

It is not an unprimeable number, because it can be changed into a prime (158977933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11145 + ... + 21027.

It is an arithmetic number, because the mean of its divisors is an integer number (11386368).

Almost surely, 2^158977938 is an apocalyptic number.

158977938 is an abundant number, since it is smaller than the sum of its proper divisors (205385838).

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

158977938 is a wasteful number, since it uses less digits than its factorization.

158977938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10278.

The product of its digits is 3810240, while the sum is 57.

The square root of 158977938 is about 12608.6453673660. The cubic root of 158977938 is about 541.7250935424.

The spelling of 158977938 in words is "one hundred fifty-eight million, nine hundred seventy-seven thousand, nine hundred thirty-eight".