313140243 has 16 divisors (see below), whose sum is σ = 450638496. Its totient is φ = 192272640.

The previous prime is 313140227. The next prime is 313140251. The reversal of 313140243 is 342041313.

It is not a de Polignac number, because 313140243 - 2⁴ = 313140227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313140203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9271 + ... + 26687.

It is an arithmetic number, because the mean of its divisors is an integer number (28164906).

Almost surely, 2^313140243 is an apocalyptic number.

313140243 is a deficient number, since it is larger than the sum of its proper divisors (137498253).

313140243 is a wasteful number, since it uses less digits than its factorization.

313140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17894.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 313140243 is about 17695.7690705999. The cubic root of 313140243 is about 679.0675245165.

Adding to 313140243 its reverse (342041313), we get a palindrome (655181556).

The spelling of 313140243 in words is "three hundred thirteen million, one hundred forty thousand, two hundred forty-three".