313220573 has 2 divisors, whose sum is σ = 313220574. Its totient is φ = 313220572.

The previous prime is 313220569. The next prime is 313220581. The reversal of 313220573 is 375022313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313219204 + 1369 = 17698^2 + 37^2 .

It is an emirp because it is prime and its reverse (375022313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313220573 - 2² = 313220569 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313220533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156610286 + 156610287.

It is an arithmetic number, because the mean of its divisors is an integer number (156610287).

Almost surely, 2^313220573 is an apocalyptic number.

It is an amenable number.

313220573 is a deficient number, since it is larger than the sum of its proper divisors (1).

313220573 is an equidigital number, since it uses as much as digits as its factorization.

313220573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 313220573 is about 17698.0386766444. The cubic root of 313220573 is about 679.1255867124.

Adding to 313220573 its reverse (375022313), we get a palindrome (688242886).

The spelling of 313220573 in words is "three hundred thirteen million, two hundred twenty thousand, five hundred seventy-three".