11819419 has 4 divisors (see below), whose sum is σ = 12070944. Its totient is φ = 11567896.

The previous prime is 11819417. The next prime is 11819429. The reversal of 11819419 is 91491811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11819419 - 2¹ = 11819417 is a prime.

It is a super-2 number, since 2×11819419² = 279397330995122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11819413) 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 in 3 ways as a sum of consecutive naturals, for example, 125692 + ... + 125785.

It is an arithmetic number, because the mean of its divisors is an integer number (3017736).

Almost surely, 2^11819419 is an apocalyptic number.

11819419 is a deficient number, since it is larger than the sum of its proper divisors (251525).

11819419 is an equidigital number, since it uses as much as digits as its factorization.

11819419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251524.

The product of its digits is 2592, while the sum is 34.

The square root of 11819419 is about 3437.9381902530. The cubic root of 11819419 is about 227.7886301569.

The spelling of 11819419 in words is "eleven million, eight hundred nineteen thousand, four hundred nineteen".