330021137 has 2 divisors, whose sum is σ = 330021138. Its totient is φ = 330021136.

The previous prime is 330021121. The next prime is 330021151. The reversal of 330021137 is 731120033.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312723856 + 17297281 = 17684^2 + 4159^2 .

It is a cyclic number.

It is not a de Polignac number, because 330021137 - 2⁴ = 330021121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (330021037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165010568 + 165010569.

It is an arithmetic number, because the mean of its divisors is an integer number (165010569).

Almost surely, 2^330021137 is an apocalyptic number.

It is an amenable number.

330021137 is a deficient number, since it is larger than the sum of its proper divisors (1).

330021137 is an equidigital number, since it uses as much as digits as its factorization.

330021137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 330021137 is about 18166.4838920469. The cubic root of 330021137 is about 691.0570767887.

The spelling of 330021137 in words is "three hundred thirty million, twenty-one thousand, one hundred thirty-seven".