11111159 has 4 divisors (see below), whose sum is σ = 11119416. Its totient is φ = 11102904.

The previous prime is 11111141. The next prime is 11111161. The reversal of 11111159 is 95111111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11111159 - 2⁸ = 11110903 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 11111159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589 + ... + 4974.

It is an arithmetic number, because the mean of its divisors is an integer number (2779854).

Almost surely, 2^11111159 is an apocalyptic number.

11111159 is a deficient number, since it is larger than the sum of its proper divisors (8257).

11111159 is an equidigital number, since it uses as much as digits as its factorization.

11111159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8256.

The product of its digits is 45, while the sum is 20.

The square root of 11111159 is about 3333.3405166589. The cubic root of 11111159 is about 223.1446372776.

The spelling of 11111159 in words is "eleven million, one hundred eleven thousand, one hundred fifty-nine".