1159311 has 4 divisors (see below), whose sum is σ = 1545752. Its totient is φ = 772872.

The previous prime is 1159303. The next prime is 1159337. The reversal of 1159311 is 1139511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1139511 = 3 ⋅379837.

It is not a de Polignac number, because 1159311 - 2³ = 1159303 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159381) 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, 193216 + ... + 193221.

It is an arithmetic number, because the mean of its divisors is an integer number (386438).

2^1159311 is an apocalyptic number.

1159311 is a deficient number, since it is larger than the sum of its proper divisors (386441).

1159311 is an equidigital number, since it uses as much as digits as its factorization.

1159311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386440.

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

The square root of 1159311 is about 1076.7130536963. The cubic root of 1159311 is about 105.0509503295.

The spelling of 1159311 in words is "one million, one hundred fifty-nine thousand, three hundred eleven".