12313257 has 16 divisors (see below), whose sum is σ = 18690048. Its totient is φ = 7137680.

The previous prime is 12313237. The next prime is 12313261. The reversal of 12313257 is 75231321.

It is not a de Polignac number, because 12313257 - 2¹¹ = 12311209 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12313237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7353 + ... + 8870.

It is an arithmetic number, because the mean of its divisors is an integer number (1168128).

Almost surely, 2^12313257 is an apocalyptic number.

It is an amenable number.

12313257 is a deficient number, since it is larger than the sum of its proper divisors (6376791).

12313257 is a wasteful number, since it uses less digits than its factorization.

12313257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16260.

The product of its digits is 1260, while the sum is 24.

The square root of 12313257 is about 3509.0250782803. The cubic root of 12313257 is about 230.9179259034.

Adding to 12313257 its reverse (75231321), we get a palindrome (87544578).

The spelling of 12313257 in words is "twelve million, three hundred thirteen thousand, two hundred fifty-seven".