12493109 has 2 divisors, whose sum is σ = 12493110. Its totient is φ = 12493108.

The previous prime is 12493097. The next prime is 12493111. The reversal of 12493109 is 90139421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6838225 + 5654884 = 2615^2 + 2378^2 .

It is an emirp because it is prime and its reverse (90139421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12493109 - 2⁸ = 12492853 is a prime.

Together with 12493111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12493189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6246554 + 6246555.

It is an arithmetic number, because the mean of its divisors is an integer number (6246555).

Almost surely, 2^12493109 is an apocalyptic number.

It is an amenable number.

12493109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12493109 is an equidigital number, since it uses as much as digits as its factorization.

12493109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 12493109 is about 3534.5592370195. The cubic root of 12493109 is about 232.0367869232.

The spelling of 12493109 in words is "twelve million, four hundred ninety-three thousand, one hundred nine".