12492539 has 2 divisors, whose sum is σ = 12492540. Its totient is φ = 12492538.

The previous prime is 12492523. The next prime is 12492547. The reversal of 12492539 is 93529421.

It is a strong prime.

It is an emirp because it is prime and its reverse (93529421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12492539 - 2⁴ = 12492523 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12492499 and 12492508.

It is not a weakly prime, because it can be changed into another prime (12492509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6246269 + 6246270.

It is an arithmetic number, because the mean of its divisors is an integer number (6246270).

Almost surely, 2^12492539 is an apocalyptic number.

12492539 is a deficient number, since it is larger than the sum of its proper divisors (1).

12492539 is an equidigital number, since it uses as much as digits as its factorization.

12492539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 12492539 is about 3534.4786036981. The cubic root of 12492539 is about 232.0332579650.

It can be divided in two parts, 12492 and 539, that added together give a palindrome (13031).

The spelling of 12492539 in words is "twelve million, four hundred ninety-two thousand, five hundred thirty-nine".