633161 has 2 divisors, whose sum is σ = 633162. Its totient is φ = 633160.

The previous prime is 633151. The next prime is 633187. The reversal of 633161 is 161336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383161 + 250000 = 619^2 + 500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-633161 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 633161.

It is not a weakly prime, because it can be changed into another prime (633151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316580 + 316581.

It is an arithmetic number, because the mean of its divisors is an integer number (316581).

2⁶³³¹⁶¹ is an apocalyptic number.

It is an amenable number.

633161 is a deficient number, since it is larger than the sum of its proper divisors (1).

633161 is an equidigital number, since it uses as much as digits as its factorization.

633161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 20.

The square root of 633161 is about 795.7141446525. The cubic root of 633161 is about 85.8693256119.

Adding to 633161 its reverse (161336), we get a palindrome (794497).

The spelling of 633161 in words is "six hundred thirty-three thousand, one hundred sixty-one".