331261316 has 12 divisors (see below), whose sum is σ = 599697420. Its totient is φ = 159919200.

The previous prime is 331261291. The next prime is 331261321. The reversal of 331261316 is 613162133.

It can be written as a sum of positive squares in 2 ways, for example, as 176358400 + 154902916 = 13280^2 + 12446^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427735 + ... + 1427966.

It is an arithmetic number, because the mean of its divisors is an integer number (49974785).

Almost surely, 2^331261316 is an apocalyptic number.

It is an amenable number.

331261316 is a deficient number, since it is larger than the sum of its proper divisors (268436104).

331261316 is a wasteful number, since it uses less digits than its factorization.

331261316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855734 (or 2855732 counting only the distinct ones).

The product of its digits is 1944, while the sum is 26.

The square root of 331261316 is about 18200.5855949747. The cubic root of 331261316 is about 691.9216306719.

The spelling of 331261316 in words is "three hundred thirty-one million, two hundred sixty-one thousand, three hundred sixteen".