313722349 has 2 divisors, whose sum is σ = 313722350. Its totient is φ = 313722348.

The previous prime is 313722259. The next prime is 313722361. The reversal of 313722349 is 943227313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215355625 + 98366724 = 14675^2 + 9918^2 .

It is a cyclic number.

It is not a de Polignac number, because 313722349 - 2¹⁵ = 313689581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313722949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156861174 + 156861175.

It is an arithmetic number, because the mean of its divisors is an integer number (156861175).

Almost surely, 2^313722349 is an apocalyptic number.

It is an amenable number.

313722349 is a deficient number, since it is larger than the sum of its proper divisors (1).

313722349 is an equidigital number, since it uses as much as digits as its factorization.

313722349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 34.

The square root of 313722349 is about 17712.2090378360. The cubic root of 313722349 is about 679.4880438668.

The spelling of 313722349 in words is "three hundred thirteen million, seven hundred twenty-two thousand, three hundred forty-nine".