263065 has 8 divisors (see below), whose sum is σ = 344448. Its totient is φ = 191280.

The previous prime is 263063. The next prime is 263071. The reversal of 263065 is 560362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 263065 - 2¹ = 263063 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2337 + ... + 2446.

It is an arithmetic number, because the mean of its divisors is an integer number (43056).

2²⁶³⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

263065 is a deficient number, since it is larger than the sum of its proper divisors (81383).

263065 is a wasteful number, since it uses less digits than its factorization.

263065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 263065 is about 512.8986254612. The cubic root of 263065 is about 64.0748635666.

The spelling of 263065 in words is "two hundred sixty-three thousand, sixty-five".