331030849 has 2 divisors, whose sum is σ = 331030850. Its totient is φ = 331030848.

The previous prime is 331030759. The next prime is 331030859. The reversal of 331030849 is 948030133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316590849 + 14440000 = 17793^2 + 3800^2 .

It is a cyclic number.

It is not a de Polignac number, because 331030849 - 2¹¹ = 331028801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331030849.

It is not a weakly prime, because it can be changed into another prime (331030859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165515424 + 165515425.

It is an arithmetic number, because the mean of its divisors is an integer number (165515425).

Almost surely, 2^331030849 is an apocalyptic number.

It is an amenable number.

331030849 is a deficient number, since it is larger than the sum of its proper divisors (1).

331030849 is an equidigital number, since it uses as much as digits as its factorization.

331030849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 331030849 is about 18194.2531861025. The cubic root of 331030849 is about 691.7611308989.

The spelling of 331030849 in words is "three hundred thirty-one million, thirty thousand, eight hundred forty-nine".