12997375 has 8 divisors (see below), whose sum is σ = 16220880. Its totient is φ = 10397800.

The previous prime is 12997357. The next prime is 12997379. The reversal of 12997375 is 57379921.

It is not a de Polignac number, because 12997375 - 2⁵ = 12997343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12997379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51865 + ... + 52114.

It is an arithmetic number, because the mean of its divisors is an integer number (2027610).

Almost surely, 2^12997375 is an apocalyptic number.

12997375 is a deficient number, since it is larger than the sum of its proper divisors (3223505).

12997375 is an equidigital number, since it uses as much as digits as its factorization.

12997375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103994 (or 103984 counting only the distinct ones).

The product of its digits is 119070, while the sum is 43.

The square root of 12997375 is about 3605.1872350823. The cubic root of 12997375 is about 235.1176414156.

The spelling of 12997375 in words is "twelve million, nine hundred ninety-seven thousand, three hundred seventy-five".