304032109 has 2 divisors, whose sum is σ = 304032110. Its totient is φ = 304032108.

The previous prime is 304032107. The next prime is 304032121. The reversal of 304032109 is 901230403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162945225 + 141086884 = 12765^2 + 11878^2 .

It is a cyclic number.

It is not a de Polignac number, because 304032109 - 2¹ = 304032107 is a prime.

Together with 304032107, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 304032109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304032107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152016054 + 152016055.

It is an arithmetic number, because the mean of its divisors is an integer number (152016055).

Almost surely, 2^304032109 is an apocalyptic number.

It is an amenable number.

304032109 is a deficient number, since it is larger than the sum of its proper divisors (1).

304032109 is an equidigital number, since it uses as much as digits as its factorization.

304032109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 304032109 is about 17436.5165385750. The cubic root of 304032109 is about 672.4187536993.

The spelling of 304032109 in words is "three hundred four million, thirty-two thousand, one hundred nine".