236513013 has 24 divisors (see below), whose sum is σ = 350111328. Its totient is φ = 141900000.

The previous prime is 236512987. The next prime is 236513021. The reversal of 236513013 is 310315632.

It is a happy number.

It is not a de Polignac number, because 236513013 - 2⁶ = 236512949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (236513113) 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, 33438 + ... + 39888.

It is an arithmetic number, because the mean of its divisors is an integer number (14587972).

Almost surely, 2^236513013 is an apocalyptic number.

It is an amenable number.

236513013 is a deficient number, since it is larger than the sum of its proper divisors (113598315).

236513013 is a wasteful number, since it uses less digits than its factorization.

236513013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577 (or 6566 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 236513013 is about 15378.9795825341. The cubic root of 236513013 is about 618.4221176403.

Adding to 236513013 its reverse (310315632), we get a palindrome (546828645).

The spelling of 236513013 in words is "two hundred thirty-six million, five hundred thirteen thousand, thirteen".