158131368 has 48 divisors (see below), whose sum is σ = 432450720. Its totient is φ = 52196256.

The previous prime is 158131367. The next prime is 158131397. The reversal of 158131368 is 863131851.

158131368 is a `hidden beast` number, since 1 + 581 + 3 + 13 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (158131361) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3246 + ... + 18077.

It is an arithmetic number, because the mean of its divisors is an integer number (9009390).

Almost surely, 2^158131368 is an apocalyptic number.

158131368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

158131368 is an abundant number, since it is smaller than the sum of its proper divisors (274319352).

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

158131368 is a wasteful number, since it uses less digits than its factorization.

158131368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21438 (or 21431 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 158131368 is about 12575.0295427088. The cubic root of 158131368 is about 540.7618054354.

The spelling of 158131368 in words is "one hundred fifty-eight million, one hundred thirty-one thousand, three hundred sixty-eight".