418797161 has 2 divisors, whose sum is σ = 418797162. Its totient is φ = 418797160.

The previous prime is 418797143. The next prime is 418797173. The reversal of 418797161 is 161797814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221563225 + 197233936 = 14885^2 + 14044^2 .

It is a cyclic number.

It is not a de Polignac number, because 418797161 - 2²⁶ = 351688297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (418791161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209398580 + 209398581.

It is an arithmetic number, because the mean of its divisors is an integer number (209398581).

Almost surely, 2^418797161 is an apocalyptic number.

It is an amenable number.

418797161 is a deficient number, since it is larger than the sum of its proper divisors (1).

418797161 is an equidigital number, since it uses as much as digits as its factorization.

418797161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 44.

The square root of 418797161 is about 20464.5342238713. The cubic root of 418797161 is about 748.1716418379.

The spelling of 418797161 in words is "four hundred eighteen million, seven hundred ninety-seven thousand, one hundred sixty-one".