1995745 has 4 divisors (see below), whose sum is σ = 2394900. Its totient is φ = 1596592.

The previous prime is 1995727. The next prime is 1995769. The reversal of 1995745 is 5475991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1056784 + 938961 = 1028^2 + 969^2 .

It is a cyclic number.

It is not a de Polignac number, because 1995745 - 2⁵ = 1995713 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1995698 and 1995707.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 199570 + ... + 199579.

It is an arithmetic number, because the mean of its divisors is an integer number (598725).

2^1995745 is an apocalyptic number.

It is an amenable number.

1995745 is a deficient number, since it is larger than the sum of its proper divisors (399155).

1995745 is an equidigital number, since it uses as much as digits as its factorization.

1995745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399154.

The product of its digits is 56700, while the sum is 40.

The square root of 1995745 is about 1412.7083917072. The cubic root of 1995745 is about 125.9026921497.

It can be divided in two parts, 19957 and 45, that added together give a palindrome (20002).

The spelling of 1995745 in words is "one million, nine hundred ninety-five thousand, seven hundred forty-five".