2266161 has 4 divisors (see below), whose sum is σ = 3021552. Its totient is φ = 1510772.

The previous prime is 2266157. The next prime is 2266163. The reversal of 2266161 is 1616622.

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 2266161 - 2² = 2266157 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2266163) 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, 377691 + ... + 377696.

It is an arithmetic number, because the mean of its divisors is an integer number (755388).

2^2266161 is an apocalyptic number.

It is an amenable number.

2266161 is a deficient number, since it is larger than the sum of its proper divisors (755391).

2266161 is an equidigital number, since it uses as much as digits as its factorization.

2266161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755390.

The product of its digits is 864, while the sum is 24.

The square root of 2266161 is about 1505.3773613284. The cubic root of 2266161 is about 131.3500534139.

It can be divided in two parts, 22661 and 61, that added together give a palindrome (22722).

The spelling of 2266161 in words is "two million, two hundred sixty-six thousand, one hundred sixty-one".