431256263 has 2 divisors, whose sum is σ = 431256264. Its totient is φ = 431256262.

The previous prime is 431256253. The next prime is 431256269. The reversal of 431256263 is 362652134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431256263 - 2⁴ = 431256247 is a prime.

It is equal to p_22911269 and since 431256263 and 22911269 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431256269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215628131 + 215628132.

It is an arithmetic number, because the mean of its divisors is an integer number (215628132).

Almost surely, 2^431256263 is an apocalyptic number.

431256263 is a deficient number, since it is larger than the sum of its proper divisors (1).

431256263 is an equidigital number, since it uses as much as digits as its factorization.

431256263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 32.

The square root of 431256263 is about 20766.7104520673. The cubic root of 431256263 is about 755.5185613431.

The spelling of 431256263 in words is "four hundred thirty-one million, two hundred fifty-six thousand, two hundred sixty-three".