240217273 has 2 divisors, whose sum is σ = 240217274. Its totient is φ = 240217272.

The previous prime is 240217249. The next prime is 240217277. The reversal of 240217273 is 372712042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210482064 + 29735209 = 14508^2 + 5453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240217273 is a prime.

It is not a weakly prime, because it can be changed into another prime (240217277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120108636 + 120108637.

It is an arithmetic number, because the mean of its divisors is an integer number (120108637).

Almost surely, 2^240217273 is an apocalyptic number.

It is an amenable number.

240217273 is a deficient number, since it is larger than the sum of its proper divisors (1).

240217273 is an equidigital number, since it uses as much as digits as its factorization.

240217273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 240217273 is about 15498.9442543678. The cubic root of 240217273 is about 621.6339773301.

The spelling of 240217273 in words is "two hundred forty million, two hundred seventeen thousand, two hundred seventy-three".