417390161 has 2 divisors, whose sum is σ = 417390162. Its totient is φ = 417390160.

The previous prime is 417390089. The next prime is 417390187. The reversal of 417390161 is 161093714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304711936 + 112678225 = 17456^2 + 10615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-417390161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (417390761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208695080 + 208695081.

It is an arithmetic number, because the mean of its divisors is an integer number (208695081).

Almost surely, 2^417390161 is an apocalyptic number.

It is an amenable number.

417390161 is a deficient number, since it is larger than the sum of its proper divisors (1).

417390161 is an equidigital number, since it uses as much as digits as its factorization.

417390161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 417390161 is about 20430.1287563246. The cubic root of 417390161 is about 747.3328439110.

The spelling of 417390161 in words is "four hundred seventeen million, three hundred ninety thousand, one hundred sixty-one".