12953431 has 2 divisors, whose sum is σ = 12953432. Its totient is φ = 12953430.

The previous prime is 12953419. The next prime is 12953467. The reversal of 12953431 is 13435921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12953431 - 2⁵ = 12953399 is a prime.

It is a super-2 number, since 2×12953431² = 335582749343522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12953431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12953471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6476715 + 6476716.

It is an arithmetic number, because the mean of its divisors is an integer number (6476716).

Almost surely, 2^12953431 is an apocalyptic number.

12953431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12953431 is an equidigital number, since it uses as much as digits as its factorization.

12953431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 12953431 is about 3599.0875232481. The cubic root of 12953431 is about 234.8523653964.

The spelling of 12953431 in words is "twelve million, nine hundred fifty-three thousand, four hundred thirty-one".