331410161 has 2 divisors, whose sum is σ = 331410162. Its totient is φ = 331410160.

The previous prime is 331410089. The next prime is 331410187. The reversal of 331410161 is 161014133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208975936 + 122434225 = 14456^2 + 11065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331410161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331410061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165705080 + 165705081.

It is an arithmetic number, because the mean of its divisors is an integer number (165705081).

Almost surely, 2^331410161 is an apocalyptic number.

It is an amenable number.

331410161 is a deficient number, since it is larger than the sum of its proper divisors (1).

331410161 is an equidigital number, since it uses as much as digits as its factorization.

331410161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 331410161 is about 18204.6741525357. The cubic root of 331410161 is about 692.0252484189.

Adding to 331410161 its reverse (161014133), we get a palindrome (492424294).

The spelling of 331410161 in words is "three hundred thirty-one million, four hundred ten thousand, one hundred sixty-one".