12375431 has 4 divisors (see below), whose sum is σ = 12802200. Its totient is φ = 11948664.

The previous prime is 12375413. The next prime is 12375437. The reversal of 12375431 is 13457321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12375431 - 2¹⁰ = 12374407 is a prime.

It is a super-2 number, since 2×12375431² = 306302584871522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12375431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12375437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213341 + ... + 213398.

It is an arithmetic number, because the mean of its divisors is an integer number (3200550).

Almost surely, 2^12375431 is an apocalyptic number.

12375431 is a deficient number, since it is larger than the sum of its proper divisors (426769).

12375431 is an equidigital number, since it uses as much as digits as its factorization.

12375431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426768.

The product of its digits is 2520, while the sum is 26.

The square root of 12375431 is about 3517.8730790067. The cubic root of 12375431 is about 231.3059357263.

The spelling of 12375431 in words is "twelve million, three hundred seventy-five thousand, four hundred thirty-one".