2261115 has 24 divisors (see below), whose sum is σ = 4066608. Its totient is φ = 1205280.

The previous prime is 2261111. The next prime is 2261117. The reversal of 2261115 is 5111622.

It is not a de Polignac number, because 2261115 - 2² = 2261111 is a prime.

It is a super-2 number, since 2×2261115² = 10225282086450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2261111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285 + ... + 2145.

It is an arithmetic number, because the mean of its divisors is an integer number (169442).

2^2261115 is an apocalyptic number.

2261115 is a deficient number, since it is larger than the sum of its proper divisors (1805493).

2261115 is an equidigital number, since it uses as much as digits as its factorization.

2261115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881 (or 1869 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 2261115 is about 1503.7004355921. The cubic root of 2261115 is about 131.2524897487.

Adding to 2261115 its reverse (5111622), we get a palindrome (7372737).

The spelling of 2261115 in words is "two million, two hundred sixty-one thousand, one hundred fifteen".