12615323 has 4 divisors (see below), whose sum is σ = 14417520. Its totient is φ = 10813128.

The previous prime is 12615313. The next prime is 12615329. The reversal of 12615323 is 32351621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32351621 = 4621 ⋅7001.

It is a cyclic number.

It is not a de Polignac number, because 12615323 - 2¹⁴ = 12598939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12615329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901088 + ... + 901101.

It is an arithmetic number, because the mean of its divisors is an integer number (3604380).

Almost surely, 2^12615323 is an apocalyptic number.

12615323 is a deficient number, since it is larger than the sum of its proper divisors (1802197).

12615323 is an equidigital number, since it uses as much as digits as its factorization.

12615323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802196.

The product of its digits is 1080, while the sum is 23.

The square root of 12615323 is about 3551.8055971576. The cubic root of 12615323 is about 232.7909672712.

Adding to 12615323 its reverse (32351621), we get a palindrome (44966944).

The spelling of 12615323 in words is "twelve million, six hundred fifteen thousand, three hundred twenty-three".