302222989 has 2 divisors, whose sum is σ = 302222990. Its totient is φ = 302222988.

The previous prime is 302222983. The next prime is 302223001. The reversal of 302222989 is 989222203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262116100 + 40106889 = 16190^2 + 6333^2 .

It is a cyclic number.

It is not a de Polignac number, because 302222989 - 2³ = 302222981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302222981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151111494 + 151111495.

It is an arithmetic number, because the mean of its divisors is an integer number (151111495).

Almost surely, 2^302222989 is an apocalyptic number.

It is an amenable number.

302222989 is a deficient number, since it is larger than the sum of its proper divisors (1).

302222989 is an equidigital number, since it uses as much as digits as its factorization.

302222989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 302222989 is about 17384.5618006322. The cubic root of 302222989 is about 671.0823739140.

The spelling of 302222989 in words is "three hundred two million, two hundred twenty-two thousand, nine hundred eighty-nine".