2262181 has 4 divisors (see below), whose sum is σ = 2268000. Its totient is φ = 2256364.

The previous prime is 2262149. The next prime is 2262191. The reversal of 2262181 is 1812622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2262181 - 2⁵ = 2262149 is a prime.

It is a super-2 number, since 2×2262181² = 10234925753522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2262191) 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, 2281 + ... + 3118.

It is an arithmetic number, because the mean of its divisors is an integer number (567000).

2^2262181 is an apocalyptic number.

It is an amenable number.

2262181 is a deficient number, since it is larger than the sum of its proper divisors (5819).

2262181 is an equidigital number, since it uses as much as digits as its factorization.

2262181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5818.

The product of its digits is 384, while the sum is 22.

The square root of 2262181 is about 1504.0548527231. The cubic root of 2262181 is about 131.2731127853.

The spelling of 2262181 in words is "two million, two hundred sixty-two thousand, one hundred eighty-one".