158513913 has 24 divisors (see below), whose sum is σ = 242653320. Its totient is φ = 99536640.

The previous prime is 158513891. The next prime is 158513917. The reversal of 158513913 is 319315851.

158513913 is a `hidden beast` number, since 1 + 58 + 513 + 91 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 56169 + 158457744 = 237^2 + 12588^2 .

It is not a de Polignac number, because 158513913 - 2²² = 154319609 is a prime.

It is a super-2 number, since 2×158513913² = 50253321229143138, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (158513917) 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, 3295 + ... + 18107.

It is an arithmetic number, because the mean of its divisors is an integer number (10110555).

Almost surely, 2^158513913 is an apocalyptic number.

It is an amenable number.

158513913 is a deficient number, since it is larger than the sum of its proper divisors (84139407).

158513913 is a wasteful number, since it uses less digits than its factorization.

158513913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14889 (or 14886 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 158513913 is about 12590.2308557071. The cubic root of 158513913 is about 541.1975172902.

The spelling of 158513913 in words is "one hundred fifty-eight million, five hundred thirteen thousand, nine hundred thirteen".