15120998 has 8 divisors (see below), whose sum is σ = 23875320. Its totient is φ = 7162560.

The previous prime is 15120997. The next prime is 15121003. The reversal of 15120998 is 89902151.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15120991) 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, 198923 + ... + 198998.

It is an arithmetic number, because the mean of its divisors is an integer number (2984415).

Almost surely, 2^15120998 is an apocalyptic number.

15120998 is a deficient number, since it is larger than the sum of its proper divisors (8754322).

15120998 is a wasteful number, since it uses less digits than its factorization.

15120998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397942.

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

The square root of 15120998 is about 3888.5727458799. The cubic root of 15120998 is about 247.2825584015.

The spelling of 15120998 in words is "fifteen million, one hundred twenty thousand, nine hundred ninety-eight".