1131159 has 8 divisors (see below), whose sum is σ = 1556992. Its totient is φ = 729720.

The previous prime is 1131157. The next prime is 1131181. The reversal of 1131159 is 9511311.

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

It is not a de Polignac number, because 1131159 - 2¹ = 1131157 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 (1131157) 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, 5989 + ... + 6174.

It is an arithmetic number, because the mean of its divisors is an integer number (194624).

2^1131159 is an apocalyptic number.

1131159 is a deficient number, since it is larger than the sum of its proper divisors (425833).

1131159 is a wasteful number, since it uses less digits than its factorization.

1131159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12197.

The product of its digits is 135, while the sum is 21.

The square root of 1131159 is about 1063.5595893038. The cubic root of 1131159 is about 104.1936419383.

The spelling of 1131159 in words is "one million, one hundred thirty-one thousand, one hundred fifty-nine".