331441139 has 2 divisors, whose sum is σ = 331441140. Its totient is φ = 331441138.

The previous prime is 331441127. The next prime is 331441177. The reversal of 331441139 is 931144133.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331441139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331441189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165720569 + 165720570.

It is an arithmetic number, because the mean of its divisors is an integer number (165720570).

Almost surely, 2^331441139 is an apocalyptic number.

331441139 is a deficient number, since it is larger than the sum of its proper divisors (1).

331441139 is an equidigital number, since it uses as much as digits as its factorization.

331441139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The square root of 331441139 is about 18205.5249580999. The cubic root of 331441139 is about 692.0468097073.

The spelling of 331441139 in words is "three hundred thirty-one million, four hundred forty-one thousand, one hundred thirty-nine".