2261063 has 4 divisors (see below), whose sum is σ = 2584080. Its totient is φ = 1938048.

The previous prime is 2261053. The next prime is 2261071. The reversal of 2261063 is 3601622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3601622 = 2 ⋅1800811.

It is not a de Polignac number, because 2261063 - 2¹⁰ = 2260039 is a prime.

It is a super-2 number, since 2×2261063² = 10224811779938, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161498 + ... + 161511.

It is an arithmetic number, because the mean of its divisors is an integer number (646020).

2^2261063 is an apocalyptic number.

2261063 is a deficient number, since it is larger than the sum of its proper divisors (323017).

2261063 is an equidigital number, since it uses as much as digits as its factorization.

2261063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323016.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2261063 is about 1503.6831448148. The cubic root of 2261063 is about 131.2514835811.

Adding to 2261063 its reverse (3601622), we get a palindrome (5862685).

The spelling of 2261063 in words is "two million, two hundred sixty-one thousand, sixty-three".