2261043 has 12 divisors (see below), whose sum is σ = 3378960. Its totient is φ = 1455216.

The previous prime is 2261041. The next prime is 2261053. The reversal of 2261043 is 3401622.

It is a happy number.

It is not a de Polignac number, because 2261043 - 2¹ = 2261041 is a prime.

It is a super-2 number, since 2×2261043² = 10224630895698, which contains 22 as substring.

2261043 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2261041) 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 11 ways as a sum of consecutive naturals, for example, 4071 + ... + 4592.

It is an arithmetic number, because the mean of its divisors is an integer number (281580).

2^2261043 is an apocalyptic number.

2261043 is a deficient number, since it is larger than the sum of its proper divisors (1117917).

2261043 is a wasteful number, since it uses less digits than its factorization.

2261043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8698 (or 8695 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2261043 is about 1503.6764944628. The cubic root of 2261043 is about 131.2510965895.

Adding to 2261043 its reverse (3401622), we get a palindrome (5662665).

The spelling of 2261043 in words is "two million, two hundred sixty-one thousand, forty-three".