12997425 has 48 divisors (see below), whose sum is σ = 25871360. Its totient is φ = 5624640.

The previous prime is 12997421. The next prime is 12997433. The reversal of 12997425 is 52479921.

It is not a de Polignac number, because 12997425 - 2² = 12997421 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12997421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9324 + ... + 10626.

Almost surely, 2^12997425 is an apocalyptic number.

12997425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12997425 is a deficient number, since it is larger than the sum of its proper divisors (12873935).

12997425 is a wasteful number, since it uses less digits than its factorization.

12997425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1337 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 12997425 is about 3605.1941695282. The cubic root of 12997425 is about 235.1179429089.

The spelling of 12997425 in words is "twelve million, nine hundred ninety-seven thousand, four hundred twenty-five".