426633161 has 2 divisors, whose sum is σ = 426633162. Its totient is φ = 426633160.

The previous prime is 426633149. The next prime is 426633169. The reversal of 426633161 is 161336624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295668025 + 130965136 = 17195^2 + 11444^2 .

It is a cyclic number.

It is not a de Polignac number, because 426633161 - 2²² = 422438857 is a prime.

It is not a weakly prime, because it can be changed into another prime (426633169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213316580 + 213316581.

It is an arithmetic number, because the mean of its divisors is an integer number (213316581).

Almost surely, 2^426633161 is an apocalyptic number.

It is an amenable number.

426633161 is a deficient number, since it is larger than the sum of its proper divisors (1).

426633161 is an equidigital number, since it uses as much as digits as its factorization.

426633161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 32.

The square root of 426633161 is about 20655.1001207934. The cubic root of 426633161 is about 752.8091163143.

Adding to 426633161 its reverse (161336624), we get a palindrome (587969785).

The spelling of 426633161 in words is "four hundred twenty-six million, six hundred thirty-three thousand, one hundred sixty-one".