11319919 has 8 divisors (see below), whose sum is σ = 12224912. Its totient is φ = 10419840.

The previous prime is 11319901. The next prime is 11319923. The reversal of 11319919 is 91991311.

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 11319919 - 2²¹ = 9222767 is a prime.

It is a super-2 number, since 2×11319919² = 256281132333122, 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 (11319949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4624 + ... + 6634.

It is an arithmetic number, because the mean of its divisors is an integer number (1528114).

Almost surely, 2^11319919 is an apocalyptic number.

11319919 is the 1943-rd hex number.

11319919 is a deficient number, since it is larger than the sum of its proper divisors (904993).

11319919 is a wasteful number, since it uses less digits than its factorization.

11319919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457.

The product of its digits is 2187, while the sum is 34.

The square root of 11319919 is about 3364.5087308551. The cubic root of 11319919 is about 224.5334794639.

The spelling of 11319919 in words is "eleven million, three hundred nineteen thousand, nine hundred nineteen".