331011045 has 24 divisors (see below), whose sum is σ = 579675096. Its totient is φ = 174716928.

The previous prime is 331011007. The next prime is 331011047. The reversal of 331011045 is 540110133.

It can be written as a sum of positive squares in 4 ways, for example, as 85211361 + 245799684 = 9231^2 + 15678^2 .

It is not a de Polignac number, because 331011045 - 2⁸ = 331010789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331011047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33552 + ... + 42281.

It is an arithmetic number, because the mean of its divisors is an integer number (24153129).

Almost surely, 2^331011045 is an apocalyptic number.

It is an amenable number.

331011045 is a deficient number, since it is larger than the sum of its proper divisors (248664051).

331011045 is a wasteful number, since it uses less digits than its factorization.

331011045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75941 (or 75938 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 331011045 is about 18193.7089401804. The cubic root of 331011045 is about 691.7473356985.

Adding to 331011045 its reverse (540110133), we get a palindrome (871121178).

The spelling of 331011045 in words is "three hundred thirty-one million, eleven thousand, forty-five".