2261583 has 6 divisors (see below), whose sum is σ = 3266744. Its totient is φ = 1507716.

The previous prime is 2261573. The next prime is 2261587. The reversal of 2261583 is 3851622.

2261583 is a `hidden beast` number, since 22 + 61 + 583 = 666.

It is not a de Polignac number, because 2261583 - 2⁹ = 2261071 is a prime.

It is a super-2 number, since 2×2261583² = 10229515331778, 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 (2261587) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125635 + ... + 125652.

2^2261583 is an apocalyptic number.

2261583 is a deficient number, since it is larger than the sum of its proper divisors (1005161).

2261583 is a wasteful number, since it uses less digits than its factorization.

2261583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251293 (or 251290 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2261583 is about 1503.8560436425. The cubic root of 2261583 is about 131.2615445628.

The spelling of 2261583 in words is "two million, two hundred sixty-one thousand, five hundred eighty-three".