2245723 has 2 divisors, whose sum is σ = 2245724. Its totient is φ = 2245722.

The previous prime is 2245721. The next prime is 2245739. The reversal of 2245723 is 3275422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2245723 - 2¹ = 2245721 is a prime.

Together with 2245721, it forms a pair of twin primes.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁸ + 2¹⁹ + 4³ + 5⁸ + 7³ + 2²⁰ + 3⁹ .

2245723 is a lucky number.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (2245721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122861 + 1122862.

It is an arithmetic number, because the mean of its divisors is an integer number (1122862).

2^2245723 is an apocalyptic number.

2245723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2245723 is an equidigital number, since it uses as much as digits as its factorization.

2245723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 25.

The square root of 2245723 is about 1498.5736551802. The cubic root of 2245723 is about 130.9539880753.

The spelling of 2245723 in words is "two million, two hundred forty-five thousand, seven hundred twenty-three".