242265 has 16 divisors (see below), whose sum is σ = 400896. Its totient is φ = 124800.

The previous prime is 242261. The next prime is 242273. The reversal of 242265 is 562242.

It is not a de Polignac number, because 242265 - 2² = 242261 is a prime.

It is a d-powerful number, because it can be written as 2³ + 4⁴ + 2¹⁵ + 2¹⁷ + 6² + 5⁷ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (25056).

2²⁴²²⁶⁵ is an apocalyptic number.

It is an amenable number.

242265 is a deficient number, since it is larger than the sum of its proper divisors (158631).

242265 is a wasteful number, since it uses less digits than its factorization.

242265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560.

The product of its digits is 960, while the sum is 21.

The square root of 242265 is about 492.2042259063. The cubic root of 242265 is about 62.3395350352.

The spelling of 242265 in words is "two hundred forty-two thousand, two hundred sixty-five".