2261771 has 2 divisors, whose sum is σ = 2261772. Its totient is φ = 2261770.

The previous prime is 2261737. The next prime is 2261789. The reversal of 2261771 is 1771622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2261771 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2261771.

It is not a weakly prime, because it can be changed into another prime (2261071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130885 + 1130886.

It is an arithmetic number, because the mean of its divisors is an integer number (1130886).

2^2261771 is an apocalyptic number.

2261771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261771 is an equidigital number, since it uses as much as digits as its factorization.

2261771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 26.

The square root of 2261771 is about 1503.9185483263. The cubic root of 2261771 is about 131.2651816150.

The spelling of 2261771 in words is "two million, two hundred sixty-one thousand, seven hundred seventy-one".