302142397 has 2 divisors, whose sum is σ = 302142398. Its totient is φ = 302142396.

The previous prime is 302142383. The next prime is 302142419. The reversal of 302142397 is 793241203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296046436 + 6095961 = 17206^2 + 2469^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-302142397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302142317) 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, 151071198 + 151071199.

It is an arithmetic number, because the mean of its divisors is an integer number (151071199).

Almost surely, 2^302142397 is an apocalyptic number.

It is an amenable number.

302142397 is a deficient number, since it is larger than the sum of its proper divisors (1).

302142397 is an equidigital number, since it uses as much as digits as its factorization.

302142397 is an odious number, because the sum of its binary digits is odd.

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

The square root of 302142397 is about 17382.2437274363. The cubic root of 302142397 is about 671.0227174344.

The spelling of 302142397 in words is "three hundred two million, one hundred forty-two thousand, three hundred ninety-seven".