15128250 has 64 divisors (see below), whose sum is σ = 39446784. Its totient is φ = 3854400.

The previous prime is 15128233. The next prime is 15128251. The reversal of 15128250 is 5282151.

It is a self number, because there is not a number n which added to its sum of digits gives 15128250.

It is not an unprimeable number, because it can be changed into a prime (15128251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16812 + ... + 17688.

It is an arithmetic number, because the mean of its divisors is an integer number (616356).

Almost surely, 2^15128250 is an apocalyptic number.

15128250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15128250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19723392).

15128250 is an abundant number, since it is smaller than the sum of its proper divisors (24318534).

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

15128250 is a wasteful number, since it uses less digits than its factorization.

15128250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 910 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 15128250 is about 3889.5051099079. The cubic root of 15128250 is about 247.3220841547.

The spelling of 15128250 in words is "fifteen million, one hundred twenty-eight thousand, two hundred fifty".