12518329 has 2 divisors, whose sum is σ = 12518330. Its totient is φ = 12518328.

The previous prime is 12518287. The next prime is 12518333. The reversal of 12518329 is 92381521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11799225 + 719104 = 3435^2 + 848^2 .

It is a cyclic number.

It is not a de Polignac number, because 12518329 - 2²³ = 4129721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12518329.

It is not a weakly prime, because it can be changed into another prime (12518339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6259164 + 6259165.

It is an arithmetic number, because the mean of its divisors is an integer number (6259165).

Almost surely, 2^12518329 is an apocalyptic number.

It is an amenable number.

12518329 is a deficient number, since it is larger than the sum of its proper divisors (1).

12518329 is an equidigital number, since it uses as much as digits as its factorization.

12518329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 12518329 is about 3538.1250684508. The cubic root of 12518329 is about 232.1928205244.

The spelling of 12518329 in words is "twelve million, five hundred eighteen thousand, three hundred twenty-nine".