331264163 has 2 divisors, whose sum is σ = 331264164. Its totient is φ = 331264162.

The previous prime is 331264139. The next prime is 331264181. The reversal of 331264163 is 361462133.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 331264163 - 2¹² = 331260067 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331264103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165632081 + 165632082.

It is an arithmetic number, because the mean of its divisors is an integer number (165632082).

Almost surely, 2^331264163 is an apocalyptic number.

331264163 is a deficient number, since it is larger than the sum of its proper divisors (1).

331264163 is an equidigital number, since it uses as much as digits as its factorization.

331264163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 29.

The square root of 331264163 is about 18200.6638065758. The cubic root of 331264163 is about 691.9236128887.

The spelling of 331264163 in words is "three hundred thirty-one million, two hundred sixty-four thousand, one hundred sixty-three".