11688143 has 8 divisors (see below), whose sum is σ = 12056688. Its totient is φ = 11325184.

The previous prime is 11688139. The next prime is 11688151. The reversal of 11688143 is 34188611.

It is a happy number.

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

It is not a de Polignac number, because 11688143 - 2² = 11688139 is a prime.

It is a super-2 number, since 2×11688143² = 273225373576898, 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 (11688113) 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 7 ways as a sum of consecutive naturals, for example, 3071 + ... + 5727.

It is an arithmetic number, because the mean of its divisors is an integer number (1507086).

Almost surely, 2^11688143 is an apocalyptic number.

11688143 is a deficient number, since it is larger than the sum of its proper divisors (368545).

11688143 is an equidigital number, since it uses as much as digits as its factorization.

11688143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793.

The product of its digits is 4608, while the sum is 32.

The square root of 11688143 is about 3418.7926231347. The cubic root of 11688143 is about 226.9421537480.

The spelling of 11688143 in words is "eleven million, six hundred eighty-eight thousand, one hundred forty-three".