13921158 has 8 divisors (see below), whose sum is σ = 27842328. Its totient is φ = 4640384.

The previous prime is 13921123. The next prime is 13921163. The reversal of 13921158 is 85112931.

13921158 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

13921158 is an admirable number.

It is a Curzon 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, 1160091 + ... + 1160102.

It is an arithmetic number, because the mean of its divisors is an integer number (3480291).

Almost surely, 2^13921158 is an apocalyptic number.

13921158 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.

13921158 is a wasteful number, since it uses less digits than its factorization.

13921158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320198.

The product of its digits is 2160, while the sum is 30.

The square root of 13921158 is about 3731.1068062976. The cubic root of 13921158 is about 240.5609448433.

The spelling of 13921158 in words is "thirteen million, nine hundred twenty-one thousand, one hundred fifty-eight".