13136530 has 32 divisors (see below), whose sum is σ = 25945920. Its totient is φ = 4749120.

The previous prime is 13136509. The next prime is 13136531. The reversal of 13136530 is 3563131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (13136531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33576 + ... + 33964.

It is an arithmetic number, because the mean of its divisors is an integer number (810810).

Almost surely, 2^13136530 is an apocalyptic number.

13136530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13136530 is a deficient number, since it is larger than the sum of its proper divisors (12809390).

13136530 is a wasteful number, since it uses less digits than its factorization.

13136530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 13136530 is about 3624.4351284028. The cubic root of 13136530 is about 235.9537518299.

Adding to 13136530 its reverse (3563131), we get a palindrome (16699661).

The spelling of 13136530 in words is "thirteen million, one hundred thirty-six thousand, five hundred thirty".