13531900 has 18 divisors (see below), whose sum is σ = 29364440. Its totient is φ = 5412720.

The previous prime is 13531891. The next prime is 13531919. The reversal of 13531900 is 913531.

It is a super-2 number, since 2×13531900² = 366224635220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67560 + ... + 67759.

Almost surely, 2^13531900 is an apocalyptic number.

13531900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13531900 is an abundant number, since it is smaller than the sum of its proper divisors (15832540).

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

13531900 is a wasteful number, since it uses less digits than its factorization.

13531900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135333 (or 135326 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 13531900 is about 3678.5730929261. The cubic root of 13531900 is about 238.2975587601.

The spelling of 13531900 in words is "thirteen million, five hundred thirty-one thousand, nine hundred".