2021195 has 8 divisors (see below), whose sum is σ = 2646000. Its totient is φ = 1469920.

The previous prime is 2021191. The next prime is 2021197. The reversal of 2021195 is 5911202.

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

It is not a de Polignac number, because 2021195 - 2² = 2021191 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2021191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18320 + ... + 18429.

It is an arithmetic number, because the mean of its divisors is an integer number (330750).

2^2021195 is an apocalyptic number.

2021195 is a deficient number, since it is larger than the sum of its proper divisors (624805).

2021195 is a wasteful number, since it uses less digits than its factorization.

2021195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36765.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2021195 is about 1421.6873777311. The cubic root of 2021195 is about 126.4356090922.

Adding to 2021195 its reverse (5911202), we get a palindrome (7932397).

The spelling of 2021195 in words is "two million, twenty-one thousand, one hundred ninety-five".