331333069 has 2 divisors, whose sum is σ = 331333070. Its totient is φ = 331333068.

The previous prime is 331333061. The next prime is 331333099. The reversal of 331333069 is 960333133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208455844 + 122877225 = 14438^2 + 11085^2 .

It is a cyclic number.

It is not a de Polignac number, because 331333069 - 2³ = 331333061 is a prime.

It is a super-2 number, since 2×331333069² = 219563205225917522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331333069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331333061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165666534 + 165666535.

It is an arithmetic number, because the mean of its divisors is an integer number (165666535).

Almost surely, 2^331333069 is an apocalyptic number.

It is an amenable number.

331333069 is a deficient number, since it is larger than the sum of its proper divisors (1).

331333069 is an equidigital number, since it uses as much as digits as its factorization.

331333069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 31.

The square root of 331333069 is about 18202.5566610847. The cubic root of 331333069 is about 691.9715850595.

The spelling of 331333069 in words is "three hundred thirty-one million, three hundred thirty-three thousand, sixty-nine".