2281163 has 4 divisors (see below), whose sum is σ = 2380368. Its totient is φ = 2181960.

The previous prime is 2281151. The next prime is 2281183. The reversal of 2281163 is 3611822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3611822 = 2 ⋅1805911.

It is a cyclic number.

It is not a de Polignac number, because 2281163 - 2⁶ = 2281099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 99181 = 2281163 / (2 + 2 + 8 + 1 + 1 + 6 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2281183) 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, 49568 + ... + 49613.

It is an arithmetic number, because the mean of its divisors is an integer number (595092).

2^2281163 is an apocalyptic number.

2281163 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2281163 is a deficient number, since it is larger than the sum of its proper divisors (99205).

2281163 is an equidigital number, since it uses as much as digits as its factorization.

2281163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99204.

The product of its digits is 576, while the sum is 23.

The square root of 2281163 is about 1510.3519457398. The cubic root of 2281163 is about 131.6392622202.

Adding to 2281163 its reverse (3611822), we get a palindrome (5892985).

The spelling of 2281163 in words is "two million, two hundred eighty-one thousand, one hundred sixty-three".