15072530 has 32 divisors (see below), whose sum is σ = 29766528. Its totient is φ = 5449600.

The previous prime is 15072517. The next prime is 15072581. The reversal of 15072530 is 3527051.

It is a junction number, because it is equal to n+sod(n) for n = 15072496 and 15072505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28670 + ... + 29190.

It is an arithmetic number, because the mean of its divisors is an integer number (930204).

Almost surely, 2^15072530 is an apocalyptic number.

15072530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15072530 is a deficient number, since it is larger than the sum of its proper divisors (14693998).

15072530 is a wasteful number, since it uses less digits than its factorization.

15072530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 15072530 is about 3882.3356372163. The cubic root of 15072530 is about 247.0180670509.

Adding to 15072530 its reverse (3527051), we get a palindrome (18599581).

The spelling of 15072530 in words is "fifteen million, seventy-two thousand, five hundred thirty".