622908131 has 2 divisors, whose sum is σ = 622908132. Its totient is φ = 622908130.

The previous prime is 622908073. The next prime is 622908137. The reversal of 622908131 is 131809226.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 622908131 - 2¹⁸ = 622645987 is a prime.

It is a super-2 number, since 2×622908131² = 776029079331826322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (622908137) 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, 311454065 + 311454066.

It is an arithmetic number, because the mean of its divisors is an integer number (311454066).

Almost surely, 2^622908131 is an apocalyptic number.

622908131 is a deficient number, since it is larger than the sum of its proper divisors (1).

622908131 is an equidigital number, since it uses as much as digits as its factorization.

622908131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 622908131 is about 24958.1275539653. The cubic root of 622908131 is about 854.0330283010.

The spelling of 622908131 in words is "six hundred twenty-two million, nine hundred eight thousand, one hundred thirty-one".