313242591 has 4 divisors (see below), whose sum is σ = 417656792. Its totient is φ = 208828392.

The previous prime is 313242577. The next prime is 313242593. The reversal of 313242591 is 195242313.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 313242591 - 2⁷ = 313242463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313242593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52207096 + ... + 52207101.

It is an arithmetic number, because the mean of its divisors is an integer number (104414198).

Almost surely, 2^313242591 is an apocalyptic number.

313242591 is a deficient number, since it is larger than the sum of its proper divisors (104414201).

313242591 is a wasteful number, since it uses less digits than its factorization.

313242591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104414200.

The product of its digits is 6480, while the sum is 30.

The square root of 313242591 is about 17698.6607120426. The cubic root of 313242591 is about 679.1414994994.

The spelling of 313242591 in words is "three hundred thirteen million, two hundred forty-two thousand, five hundred ninety-one".