2259771 has 4 divisors (see below), whose sum is σ = 3013032. Its totient is φ = 1506512.

The previous prime is 2259769. The next prime is 2259781. The reversal of 2259771 is 1779522.

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

It is a cyclic number.

It is not a de Polignac number, because 2259771 - 2¹ = 2259769 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2259731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376626 + ... + 376631.

It is an arithmetic number, because the mean of its divisors is an integer number (753258).

2^2259771 is an apocalyptic number.

2259771 is a deficient number, since it is larger than the sum of its proper divisors (753261).

2259771 is an equidigital number, since it uses as much as digits as its factorization.

2259771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753260.

The product of its digits is 8820, while the sum is 33.

The square root of 2259771 is about 1503.2534716408. The cubic root of 2259771 is about 131.2264792319.

Subtracting from 2259771 its reverse (1779522), we obtain a square (480249 = 693²).

The spelling of 2259771 in words is "two million, two hundred fifty-nine thousand, seven hundred seventy-one".