2172195 has 12 divisors (see below), whose sum is σ = 3765216. Its totient is φ = 1158480.

The previous prime is 2172179. The next prime is 2172197. The reversal of 2172195 is 5912712.

It is not a de Polignac number, because 2172195 - 2⁴ = 2172179 is a prime.

It is a super-2 number, since 2×2172195² = 9436862236050, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2172197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24091 + ... + 24180.

It is an arithmetic number, because the mean of its divisors is an integer number (313768).

2^2172195 is an apocalyptic number.

2172195 is a deficient number, since it is larger than the sum of its proper divisors (1593021).

2172195 is a wasteful number, since it uses less digits than its factorization.

2172195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48282 (or 48279 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 2172195 is about 1473.8368295032. The cubic root of 2172195 is about 129.5088965927.

The spelling of 2172195 in words is "two million, one hundred seventy-two thousand, one hundred ninety-five".