423245161 has 2 divisors, whose sum is σ = 423245162. Its totient is φ = 423245160.

The previous prime is 423245071. The next prime is 423245171. The reversal of 423245161 is 161542324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401761936 + 21483225 = 20044^2 + 4635^2 .

It is a cyclic number.

It is not a de Polignac number, because 423245161 - 2²⁵ = 389690729 is a prime.

It is not a weakly prime, because it can be changed into another prime (423245171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211622580 + 211622581.

It is an arithmetic number, because the mean of its divisors is an integer number (211622581).

Almost surely, 2^423245161 is an apocalyptic number.

It is an amenable number.

423245161 is a deficient number, since it is larger than the sum of its proper divisors (1).

423245161 is an equidigital number, since it uses as much as digits as its factorization.

423245161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 423245161 is about 20572.9230057374. The cubic root of 423245161 is about 750.8110698307.

Adding to 423245161 its reverse (161542324), we get a palindrome (584787485).

The spelling of 423245161 in words is "four hundred twenty-three million, two hundred forty-five thousand, one hundred sixty-one".