1159321 has 4 divisors (see below), whose sum is σ = 1190692. Its totient is φ = 1127952.

The previous prime is 1159303. The next prime is 1159337. The reversal of 1159321 is 1239511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1123600 + 35721 = 1060^2 + 189^2 .

It is a cyclic number.

It is not a de Polignac number, because 1159321 - 2¹⁵ = 1126553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1159292 and 1159301.

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, 15630 + ... + 15703.

It is an arithmetic number, because the mean of its divisors is an integer number (297673).

2^1159321 is an apocalyptic number.

It is an amenable number.

1159321 is a deficient number, since it is larger than the sum of its proper divisors (31371).

1159321 is an equidigital number, since it uses as much as digits as its factorization.

1159321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31370.

The product of its digits is 270, while the sum is 22.

The square root of 1159321 is about 1076.7176974491. The cubic root of 1159321 is about 105.0512523786.

The spelling of 1159321 in words is "one million, one hundred fifty-nine thousand, three hundred twenty-one".