331149717 has 6 divisors (see below), whose sum is σ = 478327382. Its totient is φ = 220766472.

The previous prime is 331149691. The next prime is 331149757. The reversal of 331149717 is 717941133.

It can be written as a sum of positive squares in only one way, i.e., 191933316 + 139216401 = 13854^2 + 11799^2 .

It is not a de Polignac number, because 331149717 - 2⁷ = 331149589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331149757) 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 in 5 ways as a sum of consecutive naturals, for example, 18397198 + ... + 18397215.

Almost surely, 2^331149717 is an apocalyptic number.

It is an amenable number.

331149717 is a deficient number, since it is larger than the sum of its proper divisors (147177665).

331149717 is a wasteful number, since it uses less digits than its factorization.

331149717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36794419 (or 36794416 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 331149717 is about 18197.5195287709. The cubic root of 331149717 is about 691.8439211907.

The spelling of 331149717 in words is "three hundred thirty-one million, one hundred forty-nine thousand, seven hundred seventeen".