304224149 has 2 divisors, whose sum is σ = 304224150. Its totient is φ = 304224148.

The previous prime is 304224121. The next prime is 304224247. The reversal of 304224149 is 941422403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299463025 + 4761124 = 17305^2 + 2182^2 .

It is a cyclic number.

It is not a de Polignac number, because 304224149 - 2⁸ = 304223893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304224449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152112074 + 152112075.

It is an arithmetic number, because the mean of its divisors is an integer number (152112075).

Almost surely, 2^304224149 is an apocalyptic number.

It is an amenable number.

304224149 is a deficient number, since it is larger than the sum of its proper divisors (1).

304224149 is an equidigital number, since it uses as much as digits as its factorization.

304224149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 304224149 is about 17442.0225031388. The cubic root of 304224149 is about 672.5603002825.

The spelling of 304224149 in words is "three hundred four million, two hundred twenty-four thousand, one hundred forty-nine".