622682161 has 2 divisors, whose sum is σ = 622682162. Its totient is φ = 622682160.

The previous prime is 622682153. The next prime is 622682191. The reversal of 622682161 is 161286226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 577200625 + 45481536 = 24025^2 + 6744^2 .

It is a cyclic number.

It is not a de Polignac number, because 622682161 - 2³ = 622682153 is a prime.

It is not a weakly prime, because it can be changed into another prime (622682101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311341080 + 311341081.

It is an arithmetic number, because the mean of its divisors is an integer number (311341081).

Almost surely, 2^622682161 is an apocalyptic number.

It is an amenable number.

622682161 is a deficient number, since it is larger than the sum of its proper divisors (1).

622682161 is an equidigital number, since it uses as much as digits as its factorization.

622682161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 34.

The square root of 622682161 is about 24953.6001610990. The cubic root of 622682161 is about 853.9297443791.

The spelling of 622682161 in words is "six hundred twenty-two million, six hundred eighty-two thousand, one hundred sixty-one".