13815089 has 4 divisors (see below), whose sum is σ = 13824000. Its totient is φ = 13806180.

The previous prime is 13815079. The next prime is 13815149. The reversal of 13815089 is 98051831.

13815089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13815089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13815059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1457 + ... + 5454.

It is an arithmetic number, because the mean of its divisors is an integer number (3456000).

Almost surely, 2^13815089 is an apocalyptic number.

It is an amenable number.

13815089 is a deficient number, since it is larger than the sum of its proper divisors (8911).

13815089 is an equidigital number, since it uses as much as digits as its factorization.

13815089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8910.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 13815089 is about 3716.8654804822. The cubic root of 13815089 is about 239.9484206286.

The spelling of 13815089 in words is "thirteen million, eight hundred fifteen thousand, eighty-nine".