91265 has 4 divisors (see below), whose sum is σ = 109524. Its totient is φ = 73008.

The previous prime is 91253. The next prime is 91283. The reversal of 91265 is 56219.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56219 = 17 ⋅3307.

It can be written as a sum of positive squares in 2 ways, for example, as 10609 + 80656 = 103^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 91265 - 2⁴ = 91249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91265.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9122 + ... + 9131.

It is an arithmetic number, because the mean of its divisors is an integer number (27381).

2⁹¹²⁶⁵ is an apocalyptic number.

It is an amenable number.

91265 is a deficient number, since it is larger than the sum of its proper divisors (18259).

91265 is a wasteful number, since it uses less digits than its factorization.

91265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18258.

The product of its digits is 540, while the sum is 23.

The square root of 91265 is about 302.1009764963. The cubic root of 91265 is about 45.0230334757.

The spelling of 91265 in words is "ninety-one thousand, two hundred sixty-five".