12975115 has 4 divisors (see below), whose sum is σ = 15570144. Its totient is φ = 10380088.

The previous prime is 12975113. The next prime is 12975139. The reversal of 12975115 is 51157921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51157921 = 2213 ⋅23117.

It is a cyclic number.

It is not a de Polignac number, because 12975115 - 2¹ = 12975113 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12975113) 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, 1297507 + ... + 1297516.

It is an arithmetic number, because the mean of its divisors is an integer number (3892536).

Almost surely, 2^12975115 is an apocalyptic number.

12975115 is a deficient number, since it is larger than the sum of its proper divisors (2595029).

12975115 is an equidigital number, since it uses as much as digits as its factorization.

12975115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595028.

The product of its digits is 3150, while the sum is 31.

The square root of 12975115 is about 3602.0986938173. The cubic root of 12975115 is about 234.9833396971.

The spelling of 12975115 in words is "twelve million, nine hundred seventy-five thousand, one hundred fifteen".