13521894 has 8 divisors (see below), whose sum is σ = 27043800. Its totient is φ = 4507296.

The previous prime is 13521889. The next prime is 13521929. The reversal of 13521894 is 49812531.

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

13521894 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126819 + ... + 1126830.

It is an arithmetic number, because the mean of its divisors is an integer number (3380475).

Almost surely, 2^13521894 is an apocalyptic number.

13521894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13521894 is a wasteful number, since it uses less digits than its factorization.

13521894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253654.

The product of its digits is 8640, while the sum is 33.

The square root of 13521894 is about 3677.2128031976. The cubic root of 13521894 is about 238.2388088600.

The spelling of 13521894 in words is "thirteen million, five hundred twenty-one thousand, eight hundred ninety-four".