12431641 has 8 divisors (see below), whose sum is σ = 13443840. Its totient is φ = 11450688.

The previous prime is 12431621. The next prime is 12431663. The reversal of 12431641 is 14613421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12431641 - 2⁷ = 12431513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12431611) 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 7 ways as a sum of consecutive naturals, for example, 6981 + ... + 8578.

It is an arithmetic number, because the mean of its divisors is an integer number (1680480).

Almost surely, 2^12431641 is an apocalyptic number.

It is an amenable number.

12431641 is a deficient number, since it is larger than the sum of its proper divisors (1012199).

12431641 is a wasteful number, since it uses less digits than its factorization.

12431641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15623.

The product of its digits is 576, while the sum is 22.

The square root of 12431641 is about 3525.8532300707. The cubic root of 12431641 is about 231.6556089702.

The spelling of 12431641 in words is "twelve million, four hundred thirty-one thousand, six hundred forty-one".