15090979 has 8 divisors (see below), whose sum is σ = 15662592. Its totient is φ = 14529480.

The previous prime is 15090949. The next prime is 15090983. The reversal of 15090979 is 97909051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15090979 - 2¹⁷ = 14959907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15090919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582 + ... + 5524.

It is an arithmetic number, because the mean of its divisors is an integer number (1957824).

Almost surely, 2^15090979 is an apocalyptic number.

15090979 is a deficient number, since it is larger than the sum of its proper divisors (571613).

15090979 is an equidigital number, since it uses as much as digits as its factorization.

15090979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057.

The product of its (nonzero) digits is 25515, while the sum is 40.

The square root of 15090979 is about 3884.7109287565. The cubic root of 15090979 is about 247.1188105493.

The spelling of 15090979 in words is "fifteen million, ninety thousand, nine hundred seventy-nine".