13236513 has 12 divisors (see below), whose sum is σ = 17861040. Its totient is φ = 8719152.

The previous prime is 13236511. The next prime is 13236533. The reversal of 13236513 is 31563231.

It is a happy number.

13236513 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13236513 - 2¹ = 13236511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13236511) 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, 73858 + ... + 74036.

It is an arithmetic number, because the mean of its divisors is an integer number (1488420).

Almost surely, 2^13236513 is an apocalyptic number.

It is an amenable number.

13236513 is a deficient number, since it is larger than the sum of its proper divisors (4624527).

13236513 is an equidigital number, since it uses as much as digits as its factorization.

13236513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 339 counting only the distinct ones).

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

The square root of 13236513 is about 3638.2018910445. The cubic root of 13236513 is about 236.5508593857.

Adding to 13236513 its reverse (31563231), we get a palindrome (44799744).

The spelling of 13236513 in words is "thirteen million, two hundred thirty-six thousand, five hundred thirteen".