2195881 has 8 divisors (see below), whose sum is σ = 2266880. Its totient is φ = 2125872.

The previous prime is 2195867. The next prime is 2195891. The reversal of 2195881 is 1885912.

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 2195881 - 2¹⁵ = 2163113 is a prime.

It is a super-2 number, since 2×2195881² = 9643786732322, which contains 22 as substring.

It is a Duffinian number.

2195881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2195801) 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, 9475 + ... + 9703.

It is an arithmetic number, because the mean of its divisors is an integer number (283360).

2^2195881 is an apocalyptic number.

It is an amenable number.

2195881 is a deficient number, since it is larger than the sum of its proper divisors (70999).

2195881 is a wasteful number, since it uses less digits than its factorization.

2195881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

The product of its digits is 5760, while the sum is 34.

The square root of 2195881 is about 1481.8505322738. The cubic root of 2195881 is about 129.9779252459.

The spelling of 2195881 in words is "two million, one hundred ninety-five thousand, eight hundred eighty-one".