302445149 has 2 divisors, whose sum is σ = 302445150. Its totient is φ = 302445148.

The previous prime is 302445139. The next prime is 302445167. The reversal of 302445149 is 941544203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251222500 + 51222649 = 15850^2 + 7157^2 .

It is an emirp because it is prime and its reverse (941544203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 302445149 - 2⁴ = 302445133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302445139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151222574 + 151222575.

It is an arithmetic number, because the mean of its divisors is an integer number (151222575).

Almost surely, 2^302445149 is an apocalyptic number.

It is an amenable number.

302445149 is a deficient number, since it is larger than the sum of its proper divisors (1).

302445149 is an equidigital number, since it uses as much as digits as its factorization.

302445149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 302445149 is about 17390.9502040573. The cubic root of 302445149 is about 671.2467681414.

The spelling of 302445149 in words is "three hundred two million, four hundred forty-five thousand, one hundred forty-nine".