622161149 has 2 divisors, whose sum is σ = 622161150. Its totient is φ = 622161148.

The previous prime is 622161139. The next prime is 622161167. The reversal of 622161149 is 941161226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 597460249 + 24700900 = 24443^2 + 4970^2 .

It is a cyclic number.

It is not a de Polignac number, because 622161149 - 2²⁰ = 621112573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622161119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311080574 + 311080575.

It is an arithmetic number, because the mean of its divisors is an integer number (311080575).

Almost surely, 2^622161149 is an apocalyptic number.

It is an amenable number.

622161149 is a deficient number, since it is larger than the sum of its proper divisors (1).

622161149 is an equidigital number, since it uses as much as digits as its factorization.

622161149 is an odious number, because the sum of its binary digits is odd.

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

The square root of 622161149 is about 24943.1583605605. The cubic root of 622161149 is about 853.6915105911.

The spelling of 622161149 in words is "six hundred twenty-two million, one hundred sixty-one thousand, one hundred forty-nine".