156015013 has 16 divisors (see below), whose sum is σ = 194935680. Its totient is φ = 121305600.

The previous prime is 156015011. The next prime is 156015031. The reversal of 156015013 is 310510651.

It is a cyclic number.

It is not a de Polignac number, because 156015013 - 2¹ = 156015011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156015011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38173 + ... + 42061.

It is an arithmetic number, because the mean of its divisors is an integer number (12183480).

Almost surely, 2^156015013 is an apocalyptic number.

It is an amenable number.

156015013 is a deficient number, since it is larger than the sum of its proper divisors (38920667).

156015013 is a wasteful number, since it uses less digits than its factorization.

156015013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 156015013 is about 12490.5969833311. The cubic root of 156015013 is about 538.3385294947.

Adding to 156015013 its reverse (310510651), we get a palindrome (466525664).

The spelling of 156015013 in words is "one hundred fifty-six million, fifteen thousand, thirteen".