240199217 has 2 divisors, whose sum is σ = 240199218. Its totient is φ = 240199216.

The previous prime is 240199147. The next prime is 240199229. The reversal of 240199217 is 712991042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224070961 + 16128256 = 14969^2 + 4016^2 .

It is a cyclic number.

It is not a de Polignac number, because 240199217 - 2¹² = 240195121 is a prime.

It is not a weakly prime, because it can be changed into another prime (240199277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120099608 + 120099609.

It is an arithmetic number, because the mean of its divisors is an integer number (120099609).

Almost surely, 2^240199217 is an apocalyptic number.

It is an amenable number.

240199217 is a deficient number, since it is larger than the sum of its proper divisors (1).

240199217 is an equidigital number, since it uses as much as digits as its factorization.

240199217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 240199217 is about 15498.3617521337. The cubic root of 240199217 is about 621.6184018413.

The spelling of 240199217 in words is "two hundred forty million, one hundred ninety-nine thousand, two hundred seventeen".