2180995 has 8 divisors (see below), whose sum is σ = 2681280. Its totient is φ = 1702080.

The previous prime is 2180993. The next prime is 2180999. The reversal of 2180995 is 5990812.

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

It is not a de Polignac number, because 2180995 - 2¹ = 2180993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2180995.

It is not an unprimeable number, because it can be changed into a prime (2180993) 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, 5115 + ... + 5524.

It is an arithmetic number, because the mean of its divisors is an integer number (335160).

2^2180995 is an apocalyptic number.

2180995 is a deficient number, since it is larger than the sum of its proper divisors (500285).

2180995 is a wasteful number, since it uses less digits than its factorization.

2180995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10685.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 2180995 is about 1476.8192171014. The cubic root of 2180995 is about 129.6835498386.

It can be divided in two parts, 21809 and 95, that added together give a square (21904 = 148²).

The spelling of 2180995 in words is "two million, one hundred eighty thousand, nine hundred ninety-five".