331650043 has 2 divisors, whose sum is σ = 331650044. Its totient is φ = 331650042.

The previous prime is 331650029. The next prime is 331650113. The reversal of 331650043 is 340056133.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331650043 is a prime.

It is not a weakly prime, because it can be changed into another prime (331650343) 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 as a sum of consecutive naturals, namely, 165825021 + 165825022.

It is an arithmetic number, because the mean of its divisors is an integer number (165825022).

Almost surely, 2^331650043 is an apocalyptic number.

331650043 is a deficient number, since it is larger than the sum of its proper divisors (1).

331650043 is an equidigital number, since it uses as much as digits as its factorization.

331650043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 331650043 is about 18211.2614335196. The cubic root of 331650043 is about 692.1921758739.

The spelling of 331650043 in words is "three hundred thirty-one million, six hundred fifty thousand, forty-three".