18119963 has 2 divisors, whose sum is σ = 18119964. Its totient is φ = 18119962.

The previous prime is 18119921. The next prime is 18119971. The reversal of 18119963 is 36991181.

It is a strong prime.

It is an emirp because it is prime and its reverse (36991181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18119963 - 2⁸ = 18119707 is a prime.

It is not a weakly prime, because it can be changed into another prime (18119063) 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, 9059981 + 9059982.

It is an arithmetic number, because the mean of its divisors is an integer number (9059982).

Almost surely, 2^18119963 is an apocalyptic number.

18119963 is a deficient number, since it is larger than the sum of its proper divisors (1).

18119963 is an equidigital number, since it uses as much as digits as its factorization.

18119963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 38.

The square root of 18119963 is about 4256.7549847272. The cubic root of 18119963 is about 262.6550582004.

The spelling of 18119963 in words is "eighteen million, one hundred nineteen thousand, nine hundred sixty-three".