305880097 has 2 divisors, whose sum is σ = 305880098. Its totient is φ = 305880096.

The previous prime is 305880077. The next prime is 305880143. The reversal of 305880097 is 790088503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298045696 + 7834401 = 17264^2 + 2799^2 .

It is an emirp because it is prime and its reverse (790088503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 305880097 - 2⁷ = 305879969 is a prime.

It is not a weakly prime, because it can be changed into another prime (305880017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152940048 + 152940049.

It is an arithmetic number, because the mean of its divisors is an integer number (152940049).

Almost surely, 2^305880097 is an apocalyptic number.

It is an amenable number.

305880097 is a deficient number, since it is larger than the sum of its proper divisors (1).

305880097 is an equidigital number, since it uses as much as digits as its factorization.

305880097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 305880097 is about 17489.4281495994. The cubic root of 305880097 is about 673.7783826733.

The spelling of 305880097 in words is "three hundred five million, eight hundred eighty thousand, ninety-seven".