15120315452 has 72 divisors (see below), whose sum is σ = 30013336080. Its totient is φ = 6609809920.

The previous prime is 15120315439. The next prime is 15120315461. The reversal of 15120315452 is 25451302151.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11729624 + ... + 11730912.

It is an arithmetic number, because the mean of its divisors is an integer number (416851890).

Almost surely, 2^15120315452 is an apocalyptic number.

It is an amenable number.

15120315452 is a deficient number, since it is larger than the sum of its proper divisors (14893020628).

15120315452 is a wasteful number, since it uses less digits than its factorization.

15120315452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 15120315452 in words is "fifteen billion, one hundred twenty million, three hundred fifteen thousand, four hundred fifty-two".