1995189 has 8 divisors (see below), whose sum is σ = 3040320. Its totient is φ = 1140096.

The previous prime is 1995187. The next prime is 1995211. The reversal of 1995189 is 9815991.

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

It is not a de Polignac number, because 1995189 - 2¹ = 1995187 is a prime.

It is a Curzon number.

1995189 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1995189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47484 + ... + 47525.

It is an arithmetic number, because the mean of its divisors is an integer number (380040).

2^1995189 is an apocalyptic number.

It is an amenable number.

1995189 is a deficient number, since it is larger than the sum of its proper divisors (1045131).

1995189 is an equidigital number, since it uses as much as digits as its factorization.

1995189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95019.

The product of its digits is 29160, while the sum is 42.

The square root of 1995189 is about 1412.5115928728. The cubic root of 1995189 is about 125.8909992066.

The spelling of 1995189 in words is "one million, nine hundred ninety-five thousand, one hundred eighty-nine".