1330091 has 8 divisors (see below), whose sum is σ = 1532160. Its totient is φ = 1131048.

The previous prime is 1330073. The next prime is 1330093. The reversal of 1330091 is 1900331.

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

It is a cyclic number.

It is not a de Polignac number, because 1330091 - 2¹⁰ = 1329067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290 + ... + 1656.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

2^1330091 is an apocalyptic number.

1330091 is a deficient number, since it is larger than the sum of its proper divisors (202069).

1330091 is a wasteful number, since it uses less digits than its factorization.

1330091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1330091 is about 1153.2957122959. The cubic root of 1330091 is about 109.9749529749.

The spelling of 1330091 in words is "one million, three hundred thirty thousand, ninety-one".