11191159 has 12 divisors (see below), whose sum is σ = 13075344. Its totient is φ = 9550464.

The previous prime is 11191157. The next prime is 11191177. The reversal of 11191159 is 95119111.

It is a happy number.

It is not a de Polignac number, because 11191159 - 2¹ = 11191157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11191153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16974 + ... + 17620.

It is an arithmetic number, because the mean of its divisors is an integer number (1089612).

Almost surely, 2^11191159 is an apocalyptic number.

11191159 is a deficient number, since it is larger than the sum of its proper divisors (1884185).

11191159 is an equidigital number, since it uses as much as digits as its factorization.

11191159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014 (or 1007 counting only the distinct ones).

The product of its digits is 405, while the sum is 28.

The square root of 11191159 is about 3345.3189683497. The cubic root of 11191159 is about 223.6789019135.

It can be divided in two parts, 1119 and 1159, that multiplied together give a palindrome (1296921).

The spelling of 11191159 in words is "eleven million, one hundred ninety-one thousand, one hundred fifty-nine".