11995 has 4 divisors (see below), whose sum is σ = 14400. Its totient is φ = 9592.

The previous prime is 11987. The next prime is 12007. The reversal of 11995 is 59911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59911 = 181 ⋅331.

It is a cyclic number.

It is not a de Polignac number, because 11995 - 2³ = 11987 is a prime.

11995 is a lucky number.

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, 1195 + ... + 1204.

It is an arithmetic number, because the mean of its divisors is an integer number (3600).

2¹¹⁹⁹⁵ is an apocalyptic number.

11995 is a deficient number, since it is larger than the sum of its proper divisors (2405).

11995 is an equidigital number, since it uses as much as digits as its factorization.

11995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404.

The product of its digits is 405, while the sum is 25.

The square root of 11995 is about 109.5216873500. The cubic root of 11995 is about 22.8911046475.

It can be divided in two parts, 1199 and 5, that multiplied together give a palindrome (5995).

The spelling of 11995 in words is "eleven thousand, nine hundred ninety-five".