13525535131 has 8 divisors (see below), whose sum is σ = 13599278784. Its totient is φ = 13451926080.

The previous prime is 13525535129. The next prime is 13525535143. The reversal of 13525535131 is 13153552531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13525535131 - 2¹ = 13525535129 is a prime.

It is a super-2 number, since 2×13525535131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13525535431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171246 + ... + 237436.

It is an arithmetic number, because the mean of its divisors is an integer number (1699909848).

Almost surely, 2^13525535131 is an apocalyptic number.

13525535131 is a deficient number, since it is larger than the sum of its proper divisors (73743653).

13525535131 is an equidigital number, since it uses as much as digits as its factorization.

13525535131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67301.

The product of its digits is 33750, while the sum is 34.

The spelling of 13525535131 in words is "thirteen billion, five hundred twenty-five million, five hundred thirty-five thousand, one hundred thirty-one".