240173 has 2 divisors, whose sum is σ = 240174. Its totient is φ = 240172.

The previous prime is 240169. The next prime is 240197. The reversal of 240173 is 371042.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145924 + 94249 = 382^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 240173 - 2² = 240169 is a prime.

It is equal to p₂₁₂₃₉ and since 240173 and 21239 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120086 + 120087.

It is an arithmetic number, because the mean of its divisors is an integer number (120087).

2²⁴⁰¹⁷³ is an apocalyptic number.

It is an amenable number.

240173 is a deficient number, since it is larger than the sum of its proper divisors (1).

240173 is an equidigital number, since it uses as much as digits as its factorization.

240173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 240173 is about 490.0744841348. The cubic root of 240173 is about 62.1595785111.

The spelling of 240173 in words is "two hundred forty thousand, one hundred seventy-three", and thus it is an iban number.