15189489 has 24 divisors (see below), whose sum is σ = 25177152. Its totient is φ = 8644320.

The previous prime is 15189487. The next prime is 15189497. The reversal of 15189489 is 98498151.

It is not a de Polignac number, because 15189489 - 2¹ = 15189487 is a prime.

It is a super-2 number, since 2×15189489² = 461441152162242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15189487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28782 + ... + 29304.

It is an arithmetic number, because the mean of its divisors is an integer number (1049048).

Almost surely, 2^15189489 is an apocalyptic number.

It is an amenable number.

15189489 is a deficient number, since it is larger than the sum of its proper divisors (9987663).

15189489 is a wasteful number, since it uses less digits than its factorization.

15189489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 994 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 15189489 is about 3897.3694974944. The cubic root of 15189489 is about 247.6553539496.

The spelling of 15189489 in words is "fifteen million, one hundred eighty-nine thousand, four hundred eighty-nine".