15120048 has 80 divisors (see below), whose sum is σ = 41961600. Its totient is φ = 4677120.

The previous prime is 15120031. The next prime is 15120071. The reversal of 15120048 is 84002151.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53668 + ... + 53948.

It is an arithmetic number, because the mean of its divisors is an integer number (524520).

Almost surely, 2^15120048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15120048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20980800).

15120048 is an abundant number, since it is smaller than the sum of its proper divisors (26841552).

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

15120048 is a wasteful number, since it uses less digits than its factorization.

15120048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 15120048 is about 3888.4505911738. The cubic root of 15120048 is about 247.2773796571.

Adding to 15120048 its reverse (84002151), we get a palindrome (99122199).

The spelling of 15120048 in words is "fifteen million, one hundred twenty thousand, forty-eight".