36291 has 4 divisors (see below), whose sum is σ = 48392. Its totient is φ = 24192.

The previous prime is 36277. The next prime is 36293. The reversal of 36291 is 19263.

36291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19263 = 3 ⋅6421.

It is not a de Polignac number, because 36291 - 2¹⁰ = 35267 is a prime.

It is a D-number.

It is the 191-st Hogben number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 36291.

It is not an unprimeable number, because it can be changed into a prime (36293) by changing a digit.

It is a nontrivial repunit in base 190.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6046 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (12098).

2³⁶²⁹¹ is an apocalyptic number.

36291 is a deficient number, since it is larger than the sum of its proper divisors (12101).

36291 is a wasteful number, since it uses less digits than its factorization.

36291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12100.

The product of its digits is 324, while the sum is 21.

The square root of 36291 is about 190.5019684938. The cubic root of 36291 is about 33.1080024341.

The spelling of 36291 in words is "thirty-six thousand, two hundred ninety-one".