158251705131 has 16 divisors (see below), whose sum is σ = 228138543360. Its totient is φ = 96997668000.

The previous prime is 158251705097. The next prime is 158251705163. The reversal of 158251705131 is 131507152851.

It is not a de Polignac number, because 158251705131 - 2¹⁵ = 158251672363 is a prime.

It is a super-2 number, since 2×158251705131² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 158251705131.

It is not an unprimeable number, because it can be changed into a prime (158251703131) 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 15 ways as a sum of consecutive naturals, for example, 8073351 + ... + 8092928.

It is an arithmetic number, because the mean of its divisors is an integer number (14258658960).

Almost surely, 2^158251705131 is an apocalyptic number.

158251705131 is a deficient number, since it is larger than the sum of its proper divisors (69886838229).

158251705131 is a wasteful number, since it uses less digits than its factorization.

158251705131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16166546.

The product of its (nonzero) digits is 42000, while the sum is 39.

Adding to 158251705131 its reverse (131507152851), we get a palindrome (289758857982).

The spelling of 158251705131 in words is "one hundred fifty-eight billion, two hundred fifty-one million, seven hundred five thousand, one hundred thirty-one".