313502243 has 4 divisors (see below), whose sum is σ = 315143808. Its totient is φ = 311860680.

The previous prime is 313502197. The next prime is 313502249. The reversal of 313502243 is 342205313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342205313 = 137 ⋅2497849.

It is a cyclic number.

It is not a de Polignac number, because 313502243 - 2¹⁰ = 313501219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313502249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820496 + ... + 820877.

It is an arithmetic number, because the mean of its divisors is an integer number (78785952).

Almost surely, 2^313502243 is an apocalyptic number.

313502243 is a deficient number, since it is larger than the sum of its proper divisors (1641565).

313502243 is a wasteful number, since it uses less digits than its factorization.

313502243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641564.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 313502243 is about 17705.9945498693. The cubic root of 313502243 is about 679.3290982405.

Adding to 313502243 its reverse (342205313), we get a palindrome (655707556).

The spelling of 313502243 in words is "three hundred thirteen million, five hundred two thousand, two hundred forty-three".