158913 has 6 divisors (see below), whose sum is σ = 229554. Its totient is φ = 105936.

The previous prime is 158909. The next prime is 158923. The reversal of 158913 is 319851.

It can be written as a sum of positive squares in only one way, i.e., 106929 + 51984 = 327^2 + 228^2 .

It is not a de Polignac number, because 158913 - 2² = 158909 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (158923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8820 + ... + 8837.

It is an arithmetic number, because the mean of its divisors is an integer number (38259).

2¹⁵⁸⁹¹³ is an apocalyptic number.

It is an amenable number.

158913 is a deficient number, since it is larger than the sum of its proper divisors (70641).

158913 is a wasteful number, since it uses less digits than its factorization.

158913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17663 (or 17660 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 158913 is about 398.6389343755. The cubic root of 158913 is about 54.1651323694.

The spelling of 158913 in words is "one hundred fifty-eight thousand, nine hundred thirteen".