13531520136 has 32 divisors (see below), whose sum is σ = 33925752000. Its totient is φ = 4497579840.

The previous prime is 13531520131. The next prime is 13531520137. The reversal of 13531520136 is 63102513531.

It is not an unprimeable number, because it can be changed into a prime (13531520131) 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, 799380 + ... + 816131.

It is an arithmetic number, because the mean of its divisors is an integer number (1060179750).

Almost surely, 2^13531520136 is an apocalyptic number.

It is an amenable number.

13531520136 is an abundant number, since it is smaller than the sum of its proper divisors (20394231864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13531520136 is a wasteful number, since it uses less digits than its factorization.

13531520136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615869 (or 1615865 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The spelling of 13531520136 in words is "thirteen billion, five hundred thirty-one million, five hundred twenty thousand, one hundred thirty-six".