11718419 has 2 divisors, whose sum is σ = 11718420. Its totient is φ = 11718418.

The previous prime is 11718401. The next prime is 11718433. The reversal of 11718419 is 91481711.

It is a strong prime.

It is an emirp because it is prime and its reverse (91481711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11718419 - 2¹² = 11714323 is a prime.

It is a super-2 number, since 2×11718419² = 274642687719122, which contains 22 as substring.

It is equal to p₇₇₀₇₆₅ and since 11718419 and 770765 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11718449) 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, 5859209 + 5859210.

It is an arithmetic number, because the mean of its divisors is an integer number (5859210).

Almost surely, 2^11718419 is an apocalyptic number.

11718419 is a deficient number, since it is larger than the sum of its proper divisors (1).

11718419 is an equidigital number, since it uses as much as digits as its factorization.

11718419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 32.

The square root of 11718419 is about 3423.2176384215. The cubic root of 11718419 is about 227.1379355348.

The spelling of 11718419 in words is "eleven million, seven hundred eighteen thousand, four hundred nineteen".