13225891 has 8 divisors (see below), whose sum is σ = 15231744. Its totient is φ = 11249160.

The previous prime is 13225873. The next prime is 13225931. The reversal of 13225891 is 19852231.

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 13225891 - 2⁷ = 13225763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13225831) 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, 6295 + ... + 8128.

It is an arithmetic number, because the mean of its divisors is an integer number (1903968).

Almost surely, 2^13225891 is an apocalyptic number.

13225891 is a deficient number, since it is larger than the sum of its proper divisors (2005853).

13225891 is a wasteful number, since it uses less digits than its factorization.

13225891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14561.

The product of its digits is 4320, while the sum is 31.

The square root of 13225891 is about 3636.7418110171. The cubic root of 13225891 is about 236.4875668946.

The spelling of 13225891 in words is "thirteen million, two hundred twenty-five thousand, eight hundred ninety-one".