15291089 has 8 divisors (see below), whose sum is σ = 16964640. Its totient is φ = 13664800.

The previous prime is 15291079. The next prime is 15291103. The reversal of 15291089 is 98019251.

15291089 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15291089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15291019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11132 + ... + 12429.

It is an arithmetic number, because the mean of its divisors is an integer number (2120580).

Almost surely, 2^15291089 is an apocalyptic number.

It is an amenable number.

15291089 is a deficient number, since it is larger than the sum of its proper divisors (1673551).

15291089 is a wasteful number, since it uses less digits than its factorization.

15291089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23631.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 15291089 is about 3910.3822063834. The cubic root of 15291089 is about 248.2063027119.

The spelling of 15291089 in words is "fifteen million, two hundred ninety-one thousand, eighty-nine".