330212749 has 2 divisors, whose sum is σ = 330212750. Its totient is φ = 330212748.

The previous prime is 330212719. The next prime is 330212759. The reversal of 330212749 is 947212033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327356649 + 2856100 = 18093^2 + 1690^2 .

It is a cyclic number.

It is not a de Polignac number, because 330212749 - 2⁷ = 330212621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 330212749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330212719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165106374 + 165106375.

It is an arithmetic number, because the mean of its divisors is an integer number (165106375).

Almost surely, 2^330212749 is an apocalyptic number.

It is an amenable number.

330212749 is a deficient number, since it is larger than the sum of its proper divisors (1).

330212749 is an equidigital number, since it uses as much as digits as its factorization.

330212749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 330212749 is about 18171.7569046034. The cubic root of 330212749 is about 691.1907946986.

The spelling of 330212749 in words is "three hundred thirty million, two hundred twelve thousand, seven hundred forty-nine".