12515293 has 4 divisors (see below), whose sum is σ = 14303200. Its totient is φ = 10727388.

The previous prime is 12515203. The next prime is 12515311. The reversal of 12515293 is 39251521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39251521 = 17 ⋅2308913.

It is not a de Polignac number, because 12515293 - 2⁹ = 12514781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893943 + ... + 893956.

It is an arithmetic number, because the mean of its divisors is an integer number (3575800).

Almost surely, 2^12515293 is an apocalyptic number.

It is an amenable number.

12515293 is a deficient number, since it is larger than the sum of its proper divisors (1787907).

12515293 is an equidigital number, since it uses as much as digits as its factorization.

12515293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787906.

The product of its digits is 2700, while the sum is 28.

The square root of 12515293 is about 3537.6960016372. The cubic root of 12515293 is about 232.1740482000.

The spelling of 12515293 in words is "twelve million, five hundred fifteen thousand, two hundred ninety-three".