302230993 has 2 divisors, whose sum is σ = 302230994. Its totient is φ = 302230992.

The previous prime is 302230979. The next prime is 302231003. The reversal of 302230993 is 399032203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 296115264 + 6115729 = 17208^2 + 2473^2 .

It is an emirp because it is prime and its reverse (399032203) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-302230993 is a prime.

It is not a weakly prime, because it can be changed into another prime (302230693) 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, 151115496 + 151115497.

It is an arithmetic number, because the mean of its divisors is an integer number (151115497).

Almost surely, 2^302230993 is an apocalyptic number.

It is an amenable number.

302230993 is a deficient number, since it is larger than the sum of its proper divisors (1).

302230993 is an equidigital number, since it uses as much as digits as its factorization.

302230993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 302230993 is about 17384.7920033574. The cubic root of 302230993 is about 671.0882981224.

The spelling of 302230993 in words is "three hundred two million, two hundred thirty thousand, nine hundred ninety-three".