308080349 has 2 divisors, whose sum is σ = 308080350. Its totient is φ = 308080348.

The previous prime is 308080343. The next prime is 308080351. The reversal of 308080349 is 943080803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294808900 + 13271449 = 17170^2 + 3643^2 .

It is a cyclic number.

It is not a de Polignac number, because 308080349 - 2¹² = 308076253 is a prime.

Together with 308080351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (308080343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154040174 + 154040175.

It is an arithmetic number, because the mean of its divisors is an integer number (154040175).

Almost surely, 2^308080349 is an apocalyptic number.

It is an amenable number.

308080349 is a deficient number, since it is larger than the sum of its proper divisors (1).

308080349 is an equidigital number, since it uses as much as digits as its factorization.

308080349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 308080349 is about 17552.2177800983. The cubic root of 308080349 is about 675.3900618860.

The spelling of 308080349 in words is "three hundred eight million, eighty thousand, three hundred forty-nine".