313431543 has 12 divisors (see below), whose sum is σ = 476562840. Its totient is φ = 197956656.

The previous prime is 313431529. The next prime is 313431577. The reversal of 313431543 is 345134313.

It is not a de Polignac number, because 313431543 - 2¹³ = 313423351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313431743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 916296 + ... + 916637.

It is an arithmetic number, because the mean of its divisors is an integer number (39713570).

Almost surely, 2^313431543 is an apocalyptic number.

313431543 is a deficient number, since it is larger than the sum of its proper divisors (163131297).

313431543 is a wasteful number, since it uses less digits than its factorization.

313431543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832958 (or 1832955 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 313431543 is about 17703.9979383189. The cubic root of 313431543 is about 679.2780277095.

Adding to 313431543 its reverse (345134313), we get a palindrome (658565856).

The spelling of 313431543 in words is "three hundred thirteen million, four hundred thirty-one thousand, five hundred forty-three".