2161195 has 8 divisors (see below), whose sum is σ = 2706336. Its totient is φ = 1653696.

The previous prime is 2161189. The next prime is 2161199. The reversal of 2161195 is 5911612.

2161195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2161195 - 2⁵ = 2161163 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 (2161199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9282 + ... + 9511.

It is an arithmetic number, because the mean of its divisors is an integer number (338292).

2^2161195 is an apocalyptic number.

2161195 is a deficient number, since it is larger than the sum of its proper divisors (545141).

2161195 is a wasteful number, since it uses less digits than its factorization.

2161195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18821.

The product of its digits is 540, while the sum is 25.

The square root of 2161195 is about 1470.1003367117. The cubic root of 2161195 is about 129.2899154280.

It can be divided in two parts, 21 and 61195, that added together give a palindrome (61216).

The spelling of 2161195 in words is "two million, one hundred sixty-one thousand, one hundred ninety-five".