15479121 has 16 divisors (see below), whose sum is σ = 24090624. Its totient is φ = 8656464.

The previous prime is 15479111. The next prime is 15479131. The reversal of 15479121 is 12197451.

It is an interprime number because it is at equal distance from previous prime (15479111) and next prime (15479131).

It is not a de Polignac number, because 15479121 - 2⁵ = 15479089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15479111) 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 15 ways as a sum of consecutive naturals, for example, 6855 + ... + 8828.

It is an arithmetic number, because the mean of its divisors is an integer number (1505664).

Almost surely, 2^15479121 is an apocalyptic number.

It is an amenable number.

15479121 is a deficient number, since it is larger than the sum of its proper divisors (8611503).

15479121 is a wasteful number, since it uses less digits than its factorization.

15479121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15740.

The product of its digits is 2520, while the sum is 30.

The square root of 15479121 is about 3934.3514077926. The cubic root of 15479121 is about 249.2195447605.

The spelling of 15479121 in words is "fifteen million, four hundred seventy-nine thousand, one hundred twenty-one".