15315492 has 24 divisors (see below), whose sum is σ = 36169056. Its totient is φ = 5043328.

The previous prime is 15315491. The next prime is 15315499. The reversal of 15315492 is 29451351.

It is not an unprimeable number, because it can be changed into a prime (15315491) 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, 6693 + ... + 8684.

It is an arithmetic number, because the mean of its divisors is an integer number (1507044).

Almost surely, 2^15315492 is an apocalyptic number.

15315492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15315492 is an abundant number, since it is smaller than the sum of its proper divisors (20853564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15315492 is a wasteful number, since it uses less digits than its factorization.

15315492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15467 (or 15465 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 15315492 is about 3913.5012456878. The cubic root of 15315492 is about 248.3382697496.

The spelling of 15315492 in words is "fifteen million, three hundred fifteen thousand, four hundred ninety-two".