340221173 has 2 divisors, whose sum is σ = 340221174. Its totient is φ = 340221172.

The previous prime is 340221131. The next prime is 340221181. The reversal of 340221173 is 371122043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290123089 + 50098084 = 17033^2 + 7078^2 .

It is a cyclic number.

It is not a de Polignac number, because 340221173 - 2¹⁰ = 340220149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340221113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170110586 + 170110587.

It is an arithmetic number, because the mean of its divisors is an integer number (170110587).

Almost surely, 2^340221173 is an apocalyptic number.

It is an amenable number.

340221173 is a deficient number, since it is larger than the sum of its proper divisors (1).

340221173 is an equidigital number, since it uses as much as digits as its factorization.

340221173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 340221173 is about 18445.0853345817. The cubic root of 340221173 is about 698.1045134591.

The spelling of 340221173 in words is "three hundred forty million, two hundred twenty-one thousand, one hundred seventy-three".