313434281 has 2 divisors, whose sum is σ = 313434282. Its totient is φ = 313434280.

The previous prime is 313434259. The next prime is 313434283. The reversal of 313434281 is 182434313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171610000 + 141824281 = 13100^2 + 11909^2 .

It is a cyclic number.

It is not a de Polignac number, because 313434281 - 2¹⁰ = 313433257 is a prime.

It is a super-2 number, since 2×313434281² = 196482097011973922, which contains 22 as substring.

Together with 313434283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313434283) 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, 156717140 + 156717141.

It is an arithmetic number, because the mean of its divisors is an integer number (156717141).

Almost surely, 2^313434281 is an apocalyptic number.

It is an amenable number.

313434281 is a deficient number, since it is larger than the sum of its proper divisors (1).

313434281 is an equidigital number, since it uses as much as digits as its factorization.

313434281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 313434281 is about 17704.0752653167. The cubic root of 313434281 is about 679.2800056617.

Adding to 313434281 its reverse (182434313), we get a palindrome (495868594).

The spelling of 313434281 in words is "three hundred thirteen million, four hundred thirty-four thousand, two hundred eighty-one".