158227312131 has 24 divisors (see below), whose sum is σ = 266531272800. Its totient is φ = 90415605168.

The previous prime is 158227312129. The next prime is 158227312141. The reversal of 158227312131 is 131213722851.

158227312131 is a `hidden beast` number, since 1 + 582 + 2 + 73 + 1 + 2 + 1 + 3 + 1 = 666.

It is not a de Polignac number, because 158227312131 - 2¹ = 158227312129 is a prime.

It is a super-2 number, since 2×158227312131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (158227312141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25624920 + ... + 25631093.

It is an arithmetic number, because the mean of its divisors is an integer number (11105469700).

Almost surely, 2^158227312131 is an apocalyptic number.

158227312131 is a deficient number, since it is larger than the sum of its proper divisors (108303960669).

158227312131 is an equidigital number, since it uses as much as digits as its factorization.

158227312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51256040 (or 51256023 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The spelling of 158227312131 in words is "one hundred fifty-eight billion, two hundred twenty-seven million, three hundred twelve thousand, one hundred thirty-one".