241666 has 4 divisors (see below), whose sum is σ = 362502. Its totient is φ = 120832.

The previous prime is 241663. The next prime is 241667. The reversal of 241666 is 666142.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 666142 = 2 ⋅333071.

It can be written as a sum of positive squares in only one way, i.e., 189225 + 52441 = 435^2 + 229^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 241666.

It is not an unprimeable number, because it can be changed into a prime (241663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60415 + ... + 60418.

2²⁴¹⁶⁶⁶ is an apocalyptic number.

241666 is a deficient number, since it is larger than the sum of its proper divisors (120836).

241666 is a wasteful number, since it uses less digits than its factorization.

241666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120835.

The product of its digits is 1728, while the sum is 25.

The square root of 241666 is about 491.5953620611. The cubic root of 241666 is about 62.2881144842.

The spelling of 241666 in words is "two hundred forty-one thousand, six hundred sixty-six".