15118489 has 4 divisors (see below), whose sum is σ = 15134080. Its totient is φ = 15102900.

The previous prime is 15118487. The next prime is 15118513. The reversal of 15118489 is 98481151.

15118489 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.

It is a cyclic number.

It is not a de Polignac number, because 15118489 - 2¹ = 15118487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15118487) 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, 6237 + ... + 8314.

It is an arithmetic number, because the mean of its divisors is an integer number (3783520).

Almost surely, 2^15118489 is an apocalyptic number.

It is an amenable number.

15118489 is a deficient number, since it is larger than the sum of its proper divisors (15591).

15118489 is a wasteful number, since it uses less digits than its factorization.

15118489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15590.

The product of its digits is 11520, while the sum is 37.

The square root of 15118489 is about 3888.2501205555. The cubic root of 15118489 is about 247.2688805949.

It can be divided in two parts, 1511 and 8489, that added together give a 4-th power (10000 = 10⁴).

The spelling of 15118489 in words is "fifteen million, one hundred eighteen thousand, four hundred eighty-nine".