365091 has 4 divisors (see below), whose sum is σ = 486792. Its totient is φ = 243392.

The previous prime is 365089. The next prime is 365107. The reversal of 365091 is 190563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190563 = 3 ⋅63521.

It is a cyclic number.

It is not a de Polignac number, because 365091 - 2¹ = 365089 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 365091.

It is not an unprimeable number, because it can be changed into a prime (365021) 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, 60846 + ... + 60851.

It is an arithmetic number, because the mean of its divisors is an integer number (121698).

2³⁶⁵⁰⁹¹ is an apocalyptic number.

365091 is a deficient number, since it is larger than the sum of its proper divisors (121701).

365091 is a wasteful number, since it uses less digits than its factorization.

365091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121700.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 365091 is about 604.2276061221. The cubic root of 365091 is about 71.4716336529.

It can be divided in two parts, 3650 and 91, that added together give a triangular number (3741 = T₈₆).

The spelling of 365091 in words is "three hundred sixty-five thousand, ninety-one".