2129773 has 2 divisors, whose sum is σ = 2129774. Its totient is φ = 2129772.

The previous prime is 2129753. The next prime is 2129779. The reversal of 2129773 is 3779212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2082249 + 47524 = 1443^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 2129773 - 2⁵ = 2129741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2129779) 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 as a sum of consecutive naturals, namely, 1064886 + 1064887.

It is an arithmetic number, because the mean of its divisors is an integer number (1064887).

2^2129773 is an apocalyptic number.

It is an amenable number.

2129773 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129773 is an equidigital number, since it uses as much as digits as its factorization.

2129773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 31.

The square root of 2129773 is about 1459.3741809420. The cubic root of 2129773 is about 128.6602642374.

The spelling of 2129773 in words is "two million, one hundred twenty-nine thousand, seven hundred seventy-three".