331045163 has 2 divisors, whose sum is σ = 331045164. Its totient is φ = 331045162.

The previous prime is 331045153. The next prime is 331045181. The reversal of 331045163 is 361540133.

It is a weak prime.

It is an emirp because it is prime and its reverse (361540133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331045163 - 2¹⁰ = 331044139 is a prime.

It is not a weakly prime, because it can be changed into another prime (331045103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165522581 + 165522582.

It is an arithmetic number, because the mean of its divisors is an integer number (165522582).

Almost surely, 2^331045163 is an apocalyptic number.

331045163 is a deficient number, since it is larger than the sum of its proper divisors (1).

331045163 is an equidigital number, since it uses as much as digits as its factorization.

331045163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 331045163 is about 18194.6465478173. The cubic root of 331045163 is about 691.7711014964.

Adding to 331045163 its reverse (361540133), we get a palindrome (692585296).

The spelling of 331045163 in words is "three hundred thirty-one million, forty-five thousand, one hundred sixty-three".