1121159 has 4 divisors (see below), whose sum is σ = 1207416. Its totient is φ = 1034904.

The previous prime is 1121147. The next prime is 1121173. The reversal of 1121159 is 9511211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9511211 = 17 ⋅559483.

It is not a de Polignac number, because 1121159 - 2⁴ = 1121143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121179) 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, 43109 + ... + 43134.

It is an arithmetic number, because the mean of its divisors is an integer number (301854).

2^1121159 is an apocalyptic number.

1121159 is a deficient number, since it is larger than the sum of its proper divisors (86257).

1121159 is an equidigital number, since it uses as much as digits as its factorization.

1121159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86256.

The product of its digits is 90, while the sum is 20.

The square root of 1121159 is about 1058.8479588685. The cubic root of 1121159 is about 103.8856917154.

The spelling of 1121159 in words is "one million, one hundred twenty-one thousand, one hundred fifty-nine".