2261167 has 4 divisors (see below), whose sum is σ = 2284576. Its totient is φ = 2237760.

The previous prime is 2261143. The next prime is 2261173. The reversal of 2261167 is 7611622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7611622 = 2 ⋅3805811.

It is a cyclic number.

It is not a de Polignac number, because 2261167 - 2¹⁹ = 1736879 is a prime.

It is a super-3 number, since 3×2261167³ = 34683200828390233389, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261117) 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, 11559 + ... + 11752.

It is an arithmetic number, because the mean of its divisors is an integer number (571144).

2^2261167 is an apocalyptic number.

2261167 is a deficient number, since it is larger than the sum of its proper divisors (23409).

2261167 is an equidigital number, since it uses as much as digits as its factorization.

2261167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23408.

The product of its digits is 1008, while the sum is 25.

The square root of 2261167 is about 1503.7177261707. The cubic root of 2261167 is about 131.2534959008.

Adding to 2261167 its reverse (7611622), we get a palindrome (9872789).

The spelling of 2261167 in words is "two million, two hundred sixty-one thousand, one hundred sixty-seven".