13521134245 has 16 divisors (see below), whose sum is σ = 16291699200. Its totient is φ = 10772760384.

The previous prime is 13521134213. The next prime is 13521134309. The reversal of 13521134245 is 54243112531.

It is a cyclic number.

It is not a de Polignac number, because 13521134245 - 2⁵ = 13521134213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1578444 + ... + 1586986.

It is an arithmetic number, because the mean of its divisors is an integer number (1018231200).

Almost surely, 2^13521134245 is an apocalyptic number.

It is an amenable number.

13521134245 is a deficient number, since it is larger than the sum of its proper divisors (2770564955).

13521134245 is an equidigital number, since it uses as much as digits as its factorization.

13521134245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9804.

The product of its digits is 14400, while the sum is 31.

Adding to 13521134245 its reverse (54243112531), we get a palindrome (67764246776).

The spelling of 13521134245 in words is "thirteen billion, five hundred twenty-one million, one hundred thirty-four thousand, two hundred forty-five".