15012530 has 32 divisors (see below), whose sum is σ = 30817584. Its totient is φ = 5216256.

The previous prime is 15012521. The next prime is 15012541. The reversal of 15012530 is 3521051.

It can be written as a sum of positive squares in 8 ways, for example, as 2699449 + 12313081 = 1643^2 + 3509^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 15012499 and 15012508.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1187 + ... + 5606.

Almost surely, 2^15012530 is an apocalyptic number.

15012530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15012530 is an abundant number, since it is smaller than the sum of its proper divisors (15805054).

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

15012530 is a wasteful number, since it uses less digits than its factorization.

15012530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6830.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 15012530 is about 3874.6006245806. The cubic root of 15012530 is about 246.6898586261.

Adding to 15012530 its reverse (3521051), we get a palindrome (18533581).

The spelling of 15012530 in words is "fifteen million, twelve thousand, five hundred thirty".