12425681 has 12 divisors (see below), whose sum is σ = 13192368. Its totient is φ = 11700744.

The previous prime is 12425671. The next prime is 12425683. The reversal of 12425681 is 18652421.

It is not a de Polignac number, because 12425681 - 2¹⁸ = 12163537 is a prime.

It is a super-2 number, since 2×12425681² = 308795096627522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12425683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43766 + ... + 44048.

It is an arithmetic number, because the mean of its divisors is an integer number (1099364).

Almost surely, 2^12425681 is an apocalyptic number.

It is an amenable number.

12425681 is a deficient number, since it is larger than the sum of its proper divisors (766687).

12425681 is an equidigital number, since it uses as much as digits as its factorization.

12425681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 389 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 12425681 is about 3525.0079432535. The cubic root of 12425681 is about 231.6185828010.

The spelling of 12425681 in words is "twelve million, four hundred twenty-five thousand, six hundred eighty-one".