240965 has 4 divisors (see below), whose sum is σ = 289164. Its totient is φ = 192768.

The previous prime is 240959. The next prime is 240967. The reversal of 240965 is 569042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 569042 = 2 ⋅284521.

It can be written as a sum of positive squares in 2 ways, for example, as 134689 + 106276 = 367^2 + 326^2 .

It is a cyclic number.

It is not a de Polignac number, because 240965 - 2¹² = 236869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24092 + ... + 24101.

It is an arithmetic number, because the mean of its divisors is an integer number (72291).

2²⁴⁰⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

240965 is a deficient number, since it is larger than the sum of its proper divisors (48199).

240965 is an equidigital number, since it uses as much as digits as its factorization.

240965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48198.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 240965 is about 490.8818595141. The cubic root of 240965 is about 62.2278298281.

The spelling of 240965 in words is "two hundred forty thousand, nine hundred sixty-five".