11919289 has 8 divisors (see below), whose sum is σ = 12584000. Its totient is φ = 11258352.

The previous prime is 11919277. The next prime is 11919301. The reversal of 11919289 is 98291911.

It is an interprime number because it is at equal distance from previous prime (11919277) and next prime (11919301).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11919289 - 2⁷ = 11919161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11919269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7627 + ... + 9055.

It is an arithmetic number, because the mean of its divisors is an integer number (1573000).

Almost surely, 2^11919289 is an apocalyptic number.

11919289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11919289 is a deficient number, since it is larger than the sum of its proper divisors (664711).

11919289 is a wasteful number, since it uses less digits than its factorization.

11919289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887.

The product of its digits is 11664, while the sum is 40.

The square root of 11919289 is about 3452.4323309806. The cubic root of 11919289 is about 228.4284099171.

The spelling of 11919289 in words is "eleven million, nine hundred nineteen thousand, two hundred eighty-nine".