15120324252 has 36 divisors (see below), whose sum is σ = 41695440696. Its totient is φ = 4581916320.

The previous prime is 15120324209. The next prime is 15120324253. The reversal of 15120324252 is 25242302151.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15120324253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19090923 + ... + 19091714.

It is an arithmetic number, because the mean of its divisors is an integer number (1158206686).

Almost surely, 2^15120324252 is an apocalyptic number.

15120324252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15120324252 is an abundant number, since it is smaller than the sum of its proper divisors (26575116444).

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

15120324252 is a wasteful number, since it uses less digits than its factorization.

15120324252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38182658 (or 38182653 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 15120324252 in words is "fifteen billion, one hundred twenty million, three hundred twenty-four thousand, two hundred fifty-two".