2291115 has 16 divisors (see below), whose sum is σ = 3859200. Its totient is φ = 1157472.

The previous prime is 2291063. The next prime is 2291119. The reversal of 2291115 is 5111922.

It is not a de Polignac number, because 2291115 - 2⁷ = 2290987 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2291091 and 2291100.

It is not an unprimeable number, because it can be changed into a prime (2291119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3735 + ... + 4304.

It is an arithmetic number, because the mean of its divisors is an integer number (241200).

2^2291115 is an apocalyptic number.

2291115 is a deficient number, since it is larger than the sum of its proper divisors (1568085).

2291115 is a wasteful number, since it uses less digits than its factorization.

2291115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8066.

The product of its digits is 180, while the sum is 21.

The square root of 2291115 is about 1513.6429565786. The cubic root of 2291115 is about 131.8304181341.

The spelling of 2291115 in words is "two million, two hundred ninety-one thousand, one hundred fifteen".