2261333 has 4 divisors (see below), whose sum is σ = 2339340. Its totient is φ = 2183328.

The previous prime is 2261309. The next prime is 2261353. The reversal of 2261333 is 3331622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1295044 + 966289 = 1138^2 + 983^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261333 - 2⁶ = 2261269 is a prime.

It is a super-2 number, since 2×2261333² = 10227253873778, 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 (2261353) 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, 38960 + ... + 39017.

It is an arithmetic number, because the mean of its divisors is an integer number (584835).

2^2261333 is an apocalyptic number.

It is an amenable number.

2261333 is a deficient number, since it is larger than the sum of its proper divisors (78007).

2261333 is an equidigital number, since it uses as much as digits as its factorization.

2261333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78006.

The product of its digits is 648, while the sum is 20.

The square root of 2261333 is about 1503.7729216873. The cubic root of 2261333 is about 131.2567077449.

Adding to 2261333 its reverse (3331622), we get a palindrome (5592955).

The spelling of 2261333 in words is "two million, two hundred sixty-one thousand, three hundred thirty-three".