313251349 has 2 divisors, whose sum is σ = 313251350. Its totient is φ = 313251348.

The previous prime is 313251343. The next prime is 313251371. The reversal of 313251349 is 943152313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270767025 + 42484324 = 16455^2 + 6518^2 .

It is a cyclic number.

It is not a de Polignac number, because 313251349 - 2⁵ = 313251317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313251349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313251343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156625674 + 156625675.

It is an arithmetic number, because the mean of its divisors is an integer number (156625675).

Almost surely, 2^313251349 is an apocalyptic number.

It is an amenable number.

313251349 is a deficient number, since it is larger than the sum of its proper divisors (1).

313251349 is an equidigital number, since it uses as much as digits as its factorization.

313251349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 31.

The square root of 313251349 is about 17698.9081301644. The cubic root of 313251349 is about 679.1478288492.

It can be divided in two parts, 313251 and 349, that added together give a square (313600 = 560²).

The spelling of 313251349 in words is "three hundred thirteen million, two hundred fifty-one thousand, three hundred forty-nine".