12515234 has 4 divisors (see below), whose sum is σ = 18772854. Its totient is φ = 6257616.

The previous prime is 12515203. The next prime is 12515311. The reversal of 12515234 is 43251521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12229009 + 286225 = 3497^2 + 535^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3128807 + ... + 3128810.

Almost surely, 2^12515234 is an apocalyptic number.

12515234 is a deficient number, since it is larger than the sum of its proper divisors (6257620).

12515234 is an equidigital number, since it uses as much as digits as its factorization.

12515234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6257619.

The product of its digits is 1200, while the sum is 23.

The square root of 12515234 is about 3537.6876628668. The cubic root of 12515234 is about 232.1736833587.

Adding to 12515234 its reverse (43251521), we get a palindrome (55766755).

The spelling of 12515234 in words is "twelve million, five hundred fifteen thousand, two hundred thirty-four".