158851913 has 24 divisors (see below), whose sum is σ = 185074560. Its totient is φ = 135185760.

The previous prime is 158851909. The next prime is 158851969. The reversal of 158851913 is 319158851.

It is not a de Polignac number, because 158851913 - 2² = 158851909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158851513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432656 + ... + 433022.

It is an arithmetic number, because the mean of its divisors is an integer number (7711440).

Almost surely, 2^158851913 is an apocalyptic number.

It is an amenable number.

158851913 is a deficient number, since it is larger than the sum of its proper divisors (26222647).

158851913 is a wasteful number, since it uses less digits than its factorization.

158851913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 506 counting only the distinct ones).

The product of its digits is 43200, while the sum is 41.

The square root of 158851913 is about 12603.6468135219. The cubic root of 158851913 is about 541.5819102520.

The spelling of 158851913 in words is "one hundred fifty-eight million, eight hundred fifty-one thousand, nine hundred thirteen".