331854313 has 6 divisors (see below), whose sum is σ = 386034666. Its totient is φ = 284446512.

The previous prime is 331854239. The next prime is 331854317. The reversal of 331854313 is 313458133.

It can be written as a sum of positive squares in only one way, i.e., 327175744 + 4678569 = 18088^2 + 2163^2 .

It is not a de Polignac number, because 331854313 - 2⁹ = 331853801 is a prime.

It is a super-2 number, since 2×331854313² = 220254570113403938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331854317) 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, 3386220 + ... + 3386317.

It is an arithmetic number, because the mean of its divisors is an integer number (64339111).

Almost surely, 2^331854313 is an apocalyptic number.

It is an amenable number.

331854313 is a deficient number, since it is larger than the sum of its proper divisors (54180353).

331854313 is an equidigital number, since it uses as much as digits as its factorization.

331854313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6772551 (or 6772544 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 331854313 is about 18216.8689131804. The cubic root of 331854313 is about 692.3342584491.

The spelling of 331854313 in words is "three hundred thirty-one million, eight hundred fifty-four thousand, three hundred thirteen".