15113689 has 4 divisors (see below), whose sum is σ = 15143220. Its totient is φ = 15084160.

The previous prime is 15113677. The next prime is 15113711. The reversal of 15113689 is 98631151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3003289 + 12110400 = 1733^2 + 3480^2 .

It is a cyclic number.

It is not a de Polignac number, because 15113689 - 2¹¹ = 15111641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15113389) 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, 13984 + ... + 15025.

It is an arithmetic number, because the mean of its divisors is an integer number (3785805).

Almost surely, 2^15113689 is an apocalyptic number.

It is an amenable number.

15113689 is a deficient number, since it is larger than the sum of its proper divisors (29531).

15113689 is an equidigital number, since it uses as much as digits as its factorization.

15113689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29530.

The product of its digits is 6480, while the sum is 34.

The square root of 15113689 is about 3887.6328273128. The cubic root of 15113689 is about 247.2427091908.

The spelling of 15113689 in words is "fifteen million, one hundred thirteen thousand, six hundred eighty-nine".