2022749 has 2 divisors, whose sum is σ = 2022750. Its totient is φ = 2022748.

The previous prime is 2022743. The next prime is 2022751. The reversal of 2022749 is 9472202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1194649 + 828100 = 1093^2 + 910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2022749 is a prime.

Together with 2022751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2022743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011374 + 1011375.

It is an arithmetic number, because the mean of its divisors is an integer number (1011375).

2^2022749 is an apocalyptic number.

It is an amenable number.

2022749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022749 is an equidigital number, since it uses as much as digits as its factorization.

2022749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2022749 is about 1422.2338063764. The cubic root of 2022749 is about 126.4680042187.

The spelling of 2022749 in words is "two million, twenty-two thousand, seven hundred forty-nine".