422577131 has 2 divisors, whose sum is σ = 422577132. Its totient is φ = 422577130.

The previous prime is 422577061. The next prime is 422577139. The reversal of 422577131 is 131775224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422577131 is a prime.

It is a super-2 number, since 2×422577131² = 357142863288382322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (422577139) 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 as a sum of consecutive naturals, namely, 211288565 + 211288566.

It is an arithmetic number, because the mean of its divisors is an integer number (211288566).

Almost surely, 2^422577131 is an apocalyptic number.

422577131 is a deficient number, since it is larger than the sum of its proper divisors (1).

422577131 is an equidigital number, since it uses as much as digits as its factorization.

422577131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 32.

The square root of 422577131 is about 20556.6809334581. The cubic root of 422577131 is about 750.4158470154.

The spelling of 422577131 in words is "four hundred twenty-two million, five hundred seventy-seven thousand, one hundred thirty-one".