12515370 has 64 divisors (see below), whose sum is σ = 34926336. Its totient is φ = 2810880.

The previous prime is 12515369. The next prime is 12515387. The reversal of 12515370 is 7351521.

It is a self number, because there is not a number n which added to its sum of digits gives 12515370.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12322 + ... + 13298.

It is an arithmetic number, because the mean of its divisors is an integer number (545724).

Almost surely, 2^12515370 is an apocalyptic number.

12515370 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 12515370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17463168).

12515370 is an abundant number, since it is smaller than the sum of its proper divisors (22410966).

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

12515370 is a wasteful number, since it uses less digits than its factorization.

12515370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 12515370 is about 3537.7068844097. The cubic root of 12515370 is about 232.1745243472.

Adding to 12515370 its reverse (7351521), we get a palindrome (19866891).

The spelling of 12515370 in words is "twelve million, five hundred fifteen thousand, three hundred seventy".