622442137 has 2 divisors, whose sum is σ = 622442138. Its totient is φ = 622442136.

The previous prime is 622442111. The next prime is 622442159. The reversal of 622442137 is 731244226.

It is a happy number.

622442137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499254336 + 123187801 = 22344^2 + 11099^2 .

It is a cyclic number.

It is not a de Polignac number, because 622442137 - 2²³ = 614053529 is a prime.

It is equal to p_32433961 and since 622442137 and 32433961 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 622442099 and 622442108.

It is not a weakly prime, because it can be changed into another prime (622448137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311221068 + 311221069.

It is an arithmetic number, because the mean of its divisors is an integer number (311221069).

Almost surely, 2^622442137 is an apocalyptic number.

It is an amenable number.

622442137 is a deficient number, since it is larger than the sum of its proper divisors (1).

622442137 is an equidigital number, since it uses as much as digits as its factorization.

622442137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 31.

The square root of 622442137 is about 24948.7902913147. The cubic root of 622442137 is about 853.8200094361.

The spelling of 622442137 in words is "six hundred twenty-two million, four hundred forty-two thousand, one hundred thirty-seven".