158013 has 12 divisors (see below), whose sum is σ = 231868. Its totient is φ = 103680.

The previous prime is 158009. The next prime is 158017. The reversal of 158013 is 310851.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (158009) and next prime (158017).

It can be written as a sum of positive squares in 2 ways, for example, as 26244 + 131769 = 162^2 + 363^2 .

It is not a de Polignac number, because 158013 - 2² = 158009 is a prime.

It is a Duffinian number.

158013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 783 + ... + 963.

2¹⁵⁸⁰¹³ is an apocalyptic number.

It is an amenable number.

158013 is a deficient number, since it is larger than the sum of its proper divisors (73855).

158013 is a wasteful number, since it uses less digits than its factorization.

158013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 158013 is about 397.5084904754. The cubic root of 158013 is about 54.0626844080.

Adding to 158013 its reverse (310851), we get a palindrome (468864).

The spelling of 158013 in words is "one hundred fifty-eight thousand, thirteen".