13813500 has 48 divisors (see below), whose sum is σ = 40229280. Its totient is φ = 3683200.

The previous prime is 13813487. The next prime is 13813517. The reversal of 13813500 is 531831.

It is a happy number.

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, 3105 + ... + 6104.

It is an arithmetic number, because the mean of its divisors is an integer number (838110).

Almost surely, 2^13813500 is an apocalyptic number.

13813500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13813500 is an abundant number, since it is smaller than the sum of its proper divisors (26415780).

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

13813500 is a wasteful number, since it uses less digits than its factorization.

13813500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9231 (or 9219 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 13813500 is about 3716.6517189535. The cubic root of 13813500 is about 239.9392207202.

The spelling of 13813500 in words is "thirteen million, eight hundred thirteen thousand, five hundred".