633260161 has 2 divisors, whose sum is σ = 633260162. Its totient is φ = 633260160.

The previous prime is 633260141. The next prime is 633260167. The reversal of 633260161 is 161062336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337420161 + 295840000 = 18369^2 + 17200^2 .

It is a cyclic number.

It is not a de Polignac number, because 633260161 - 2¹¹ = 633258113 is a prime.

It is not a weakly prime, because it can be changed into another prime (633260167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316630080 + 316630081.

It is an arithmetic number, because the mean of its divisors is an integer number (316630081).

Almost surely, 2^633260161 is an apocalyptic number.

It is an amenable number.

633260161 is a deficient number, since it is larger than the sum of its proper divisors (1).

633260161 is an equidigital number, since it uses as much as digits as its factorization.

633260161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 633260161 is about 25164.6609553954. The cubic root of 633260161 is about 858.7380811775.

The spelling of 633260161 in words is "six hundred thirty-three million, two hundred sixty thousand, one hundred sixty-one".