12418493 has 2 divisors, whose sum is σ = 12418494. Its totient is φ = 12418492.

The previous prime is 12418451. The next prime is 12418499. The reversal of 12418493 is 39481421.

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., 7279204 + 5139289 = 2698^2 + 2267^2 .

It is a cyclic number.

It is not a de Polignac number, because 12418493 - 2⁶ = 12418429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12418499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6209246 + 6209247.

It is an arithmetic number, because the mean of its divisors is an integer number (6209247).

Almost surely, 2^12418493 is an apocalyptic number.

It is an amenable number.

12418493 is a deficient number, since it is larger than the sum of its proper divisors (1).

12418493 is an equidigital number, since it uses as much as digits as its factorization.

12418493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 12418493 is about 3523.9882235899. The cubic root of 12418493 is about 231.5739119963.

The spelling of 12418493 in words is "twelve million, four hundred eighteen thousand, four hundred ninety-three".