12431601 has 48 divisors (see below), whose sum is σ = 22678656. Its totient is φ = 6386688.

The previous prime is 12431599. The next prime is 12431611. The reversal of 12431601 is 10613421.

It is a happy number.

It is not a de Polignac number, because 12431601 - 2¹ = 12431599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12431611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35041 + ... + 35393.

It is an arithmetic number, because the mean of its divisors is an integer number (472472).

Almost surely, 2^12431601 is an apocalyptic number.

It is an amenable number.

12431601 is a deficient number, since it is larger than the sum of its proper divisors (10247055).

12431601 is a wasteful number, since it uses less digits than its factorization.

12431601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12431601 is about 3525.8475576803. The cubic root of 12431601 is about 231.6553605119.

The spelling of 12431601 in words is "twelve million, four hundred thirty-one thousand, six hundred one".