13124313 has 6 divisors (see below), whose sum is σ = 18957354. Its totient is φ = 8749536.

The previous prime is 13124311. The next prime is 13124339. The reversal of 13124313 is 31342131.

It can be written as a sum of positive squares in only one way, i.e., 9072144 + 4052169 = 3012^2 + 2013^2 .

It is not a de Polignac number, because 13124313 - 2¹ = 13124311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13124311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 729120 + ... + 729137.

It is an arithmetic number, because the mean of its divisors is an integer number (3159559).

Almost surely, 2^13124313 is an apocalyptic number.

It is an amenable number.

13124313 is a deficient number, since it is larger than the sum of its proper divisors (5833041).

13124313 is a wasteful number, since it uses less digits than its factorization.

13124313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458263 (or 1458260 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 13124313 is about 3622.7493702988. The cubic root of 13124313 is about 235.8805833176.

Adding to 13124313 its reverse (31342131), we get a palindrome (44466444).

It can be divided in two parts, 1312 and 4313, that added together give a square (5625 = 75²).

The spelling of 13124313 in words is "thirteen million, one hundred twenty-four thousand, three hundred thirteen".