2200400173 has 2 divisors, whose sum is σ = 2200400174. Its totient is φ = 2200400172.

The previous prime is 2200400129. The next prime is 2200400231. The reversal of 2200400173 is 3710040022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1983633444 + 216766729 = 44538^2 + 14723^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200400173 - 2⁹ = 2200399661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2200400173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2200400123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100200086 + 1100200087.

It is an arithmetic number, because the mean of its divisors is an integer number (1100200087).

Almost surely, 2^2200400173 is an apocalyptic number.

It is an amenable number.

2200400173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2200400173 is an equidigital number, since it uses as much as digits as its factorization.

2200400173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2200400173 is about 46908.4232627787. The cubic root of 2200400173 is about 1300.6702998859.

Adding to 2200400173 its reverse (3710040022), we get a palindrome (5910440195).

The spelling of 2200400173 in words is "two billion, two hundred million, four hundred thousand, one hundred seventy-three".