308352313 has 2 divisors, whose sum is σ = 308352314. Its totient is φ = 308352312.

The previous prime is 308352301. The next prime is 308352347. The reversal of 308352313 is 313253803.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214417449 + 93934864 = 14643^2 + 9692^2 .

It is a cyclic number.

It is not a de Polignac number, because 308352313 - 2⁵ = 308352281 is a prime.

It is a super-2 number, since 2×308352313² = 190162297864899938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (308350313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154176156 + 154176157.

It is an arithmetic number, because the mean of its divisors is an integer number (154176157).

Almost surely, 2^308352313 is an apocalyptic number.

It is an amenable number.

308352313 is a deficient number, since it is larger than the sum of its proper divisors (1).

308352313 is an equidigital number, since it uses as much as digits as its factorization.

308352313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 308352313 is about 17559.9633541759. The cubic root of 308352313 is about 675.5887413975.

It can be divided in two parts, 3083523 and 13, that added together give a square (3083536 = 1756²).

The spelling of 308352313 in words is "three hundred eight million, three hundred fifty-two thousand, three hundred thirteen".