305226049 has 2 divisors, whose sum is σ = 305226050. Its totient is φ = 305226048.

The previous prime is 305225983. The next prime is 305226079. The reversal of 305226049 is 940622503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192016449 + 113209600 = 13857^2 + 10640^2 .

It is an emirp because it is prime and its reverse (940622503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 305226049 - 2⁹ = 305225537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 305226049.

It is not a weakly prime, because it can be changed into another prime (305226079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152613024 + 152613025.

It is an arithmetic number, because the mean of its divisors is an integer number (152613025).

Almost surely, 2^305226049 is an apocalyptic number.

It is an amenable number.

305226049 is a deficient number, since it is larger than the sum of its proper divisors (1).

305226049 is an equidigital number, since it uses as much as digits as its factorization.

305226049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 305226049 is about 17470.7197619331. The cubic root of 305226049 is about 673.2978045223.

The spelling of 305226049 in words is "three hundred five million, two hundred twenty-six thousand, forty-nine".