13537815135 has 64 divisors (see below), whose sum is σ = 23538923520. Its totient is φ = 6643728000.

The previous prime is 13537815131. The next prime is 13537815143. The reversal of 13537815135 is 53151873531.

It is not a de Polignac number, because 13537815135 - 2² = 13537815131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13537815131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18026010 + ... + 18026760.

It is an arithmetic number, because the mean of its divisors is an integer number (367795680).

Almost surely, 2^13537815135 is an apocalyptic number.

13537815135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13537815135 is a deficient number, since it is larger than the sum of its proper divisors (10001108385).

13537815135 is an equidigital number, since it uses as much as digits as its factorization.

13537815135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345 (or 1319 counting only the distinct ones).

The product of its digits is 189000, while the sum is 42.

The spelling of 13537815135 in words is "thirteen billion, five hundred thirty-seven million, eight hundred fifteen thousand, one hundred thirty-five".