2256173 has 2 divisors, whose sum is σ = 2256174. Its totient is φ = 2256172.

The previous prime is 2256169. The next prime is 2256179. The reversal of 2256173 is 3716522.

2256173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2256004 + 169 = 1502^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256173 - 2² = 2256169 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128086 + 1128087.

It is an arithmetic number, because the mean of its divisors is an integer number (1128087).

2^2256173 is an apocalyptic number.

It is an amenable number.

2256173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256173 is an equidigital number, since it uses as much as digits as its factorization.

2256173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 26.

The square root of 2256173 is about 1502.0562572687. The cubic root of 2256173 is about 131.1567961120.

The spelling of 2256173 in words is "two million, two hundred fifty-six thousand, one hundred seventy-three".