18614413 has 2 divisors, whose sum is σ = 18614414. Its totient is φ = 18614412.

The previous prime is 18614381. The next prime is 18614443. The reversal of 18614413 is 31441681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10673289 + 7941124 = 3267^2 + 2818^2 .

It is a cyclic number.

It is not a de Polignac number, because 18614413 - 2⁵ = 18614381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18614443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9307206 + 9307207.

It is an arithmetic number, because the mean of its divisors is an integer number (9307207).

Almost surely, 2^18614413 is an apocalyptic number.

It is an amenable number.

18614413 is a deficient number, since it is larger than the sum of its proper divisors (1).

18614413 is an equidigital number, since it uses as much as digits as its factorization.

18614413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 18614413 is about 4314.4423741661. The cubic root of 18614413 is about 265.0227250003.

The spelling of 18614413 in words is "eighteen million, six hundred fourteen thousand, four hundred thirteen".