425323161 has 6 divisors (see below), whose sum is σ = 614355690. Its totient is φ = 283548768.

The previous prime is 425323147. The next prime is 425323183. The reversal of 425323161 is 161323524.

425323161 is a `hidden beast` number, since 42 + 532 + 31 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 230888025 + 194435136 = 15195^2 + 13944^2 .

It is not a de Polignac number, because 425323161 - 2⁶ = 425323097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425323121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23629056 + ... + 23629073.

It is an arithmetic number, because the mean of its divisors is an integer number (102392615).

Almost surely, 2^425323161 is an apocalyptic number.

It is an amenable number.

425323161 is a deficient number, since it is larger than the sum of its proper divisors (189032529).

425323161 is a wasteful number, since it uses less digits than its factorization.

425323161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47258135 (or 47258132 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 425323161 is about 20623.3644442414. The cubic root of 425323161 is about 752.0378127442.

Adding to 425323161 its reverse (161323524), we get a palindrome (586646685).

The spelling of 425323161 in words is "four hundred twenty-five million, three hundred twenty-three thousand, one hundred sixty-one".