331989083 has 2 divisors, whose sum is σ = 331989084. Its totient is φ = 331989082.

The previous prime is 331989037. The next prime is 331989139. The reversal of 331989083 is 380989133.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331989083 - 2¹⁴ = 331972699 is a prime.

It is a super-2 number, since 2×331989083² = 220433502462361778, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (331989683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165994541 + 165994542.

It is an arithmetic number, because the mean of its divisors is an integer number (165994542).

Almost surely, 2^331989083 is an apocalyptic number.

331989083 is a deficient number, since it is larger than the sum of its proper divisors (1).

331989083 is an equidigital number, since it uses as much as digits as its factorization.

331989083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 331989083 is about 18220.5675817193. The cubic root of 331989083 is about 692.4279675018.

Subtracting 331989083 from its reverse (380989133), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 331989083 in words is "three hundred thirty-one million, nine hundred eighty-nine thousand, eighty-three".