11994519 has 4 divisors (see below), whose sum is σ = 15992696. Its totient is φ = 7996344.

The previous prime is 11994517. The next prime is 11994539. The reversal of 11994519 is 91549911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91549911 = 3 ⋅30516637.

It is not a de Polignac number, because 11994519 - 2¹ = 11994517 is a prime.

It is a super-2 number, since 2×11994519² = 287736972082722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11994517) 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, 1999084 + ... + 1999089.

It is an arithmetic number, because the mean of its divisors is an integer number (3998174).

Almost surely, 2^11994519 is an apocalyptic number.

11994519 is a deficient number, since it is larger than the sum of its proper divisors (3998177).

11994519 is an equidigital number, since it uses as much as digits as its factorization.

11994519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3998176.

The product of its digits is 14580, while the sum is 39.

The square root of 11994519 is about 3463.3104105754. The cubic root of 11994519 is about 228.9079866537.

The spelling of 11994519 in words is "eleven million, nine hundred ninety-four thousand, five hundred nineteen".