12313544 has 8 divisors (see below), whose sum is σ = 23087910. Its totient is φ = 6156768.

The previous prime is 12313537. The next prime is 12313549. The reversal of 12313544 is 44531321.

It can be written as a sum of positive squares in only one way, i.e., 10176100 + 2137444 = 3190^2 + 1462^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12313549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769589 + ... + 769604.

Almost surely, 2^12313544 is an apocalyptic number.

It is an amenable number.

12313544 is a deficient number, since it is larger than the sum of its proper divisors (10774366).

12313544 is a wasteful number, since it uses less digits than its factorization.

12313544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539199 (or 1539195 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 12313544 is about 3509.0659725916. The cubic root of 12313544 is about 230.9197199841.

Adding to 12313544 its reverse (44531321), we get a palindrome (56844865).

The spelling of 12313544 in words is "twelve million, three hundred thirteen thousand, five hundred forty-four".