313143473 has 2 divisors, whose sum is σ = 313143474. Its totient is φ = 313143472.

The previous prime is 313143463. The next prime is 313143491. The reversal of 313143473 is 374341313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261404224 + 51739249 = 16168^2 + 7193^2 .

It is a cyclic number.

It is not a de Polignac number, because 313143473 - 2⁸ = 313143217 is a prime.

It is not a weakly prime, because it can be changed into another prime (313143443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156571736 + 156571737.

It is an arithmetic number, because the mean of its divisors is an integer number (156571737).

Almost surely, 2^313143473 is an apocalyptic number.

It is an amenable number.

313143473 is a deficient number, since it is larger than the sum of its proper divisors (1).

313143473 is an equidigital number, since it uses as much as digits as its factorization.

313143473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 29.

The square root of 313143473 is about 17695.8603351179. The cubic root of 313143473 is about 679.0698593389.

Adding to 313143473 its reverse (374341313), we get a palindrome (687484786).

The spelling of 313143473 in words is "three hundred thirteen million, one hundred forty-three thousand, four hundred seventy-three".