306522049 has 2 divisors, whose sum is σ = 306522050. Its totient is φ = 306522048.

The previous prime is 306522031. The next prime is 306522091. The reversal of 306522049 is 940225603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189557824 + 116964225 = 13768^2 + 10815^2 .

It is a cyclic number.

It is not a de Polignac number, because 306522049 - 2¹¹ = 306520001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 306522049.

It is not a weakly prime, because it can be changed into another prime (306526049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153261024 + 153261025.

It is an arithmetic number, because the mean of its divisors is an integer number (153261025).

Almost surely, 2^306522049 is an apocalyptic number.

It is an amenable number.

306522049 is a deficient number, since it is larger than the sum of its proper divisors (1).

306522049 is an equidigital number, since it uses as much as digits as its factorization.

306522049 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 306522049 is about 17507.7711031416. The cubic root of 306522049 is about 674.2494072678.

The spelling of 306522049 in words is "three hundred six million, five hundred twenty-two thousand, forty-nine".