2291109 has 8 divisors (see below), whose sum is σ = 3120000. Its totient is φ = 1494816.

The previous prime is 2291063. The next prime is 2291119. The reversal of 2291109 is 9011922.

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

It is not a de Polignac number, because 2291109 - 2¹² = 2287013 is a prime.

It is a super-3 number, since 3×2291109³ = 36079333714039224087, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291119) 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, 7984 + ... + 8265.

It is an arithmetic number, because the mean of its divisors is an integer number (390000).

2^2291109 is an apocalyptic number.

It is an amenable number.

2291109 is a deficient number, since it is larger than the sum of its proper divisors (828891).

2291109 is a wasteful number, since it uses less digits than its factorization.

2291109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16299.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 2291109 is about 1513.6409746040. The cubic root of 2291109 is about 131.8303030543.

The spelling of 2291109 in words is "two million, two hundred ninety-one thousand, one hundred nine".