1995539 has 8 divisors (see below), whose sum is σ = 2456160. Its totient is φ = 1578816.

The previous prime is 1995533. The next prime is 1995541. The reversal of 1995539 is 9355991.

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 1995539 - 2¹² = 1991443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1995496 and 1995505.

It is not an unprimeable number, because it can be changed into a prime (1995533) 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, 10874 + ... + 11055.

It is an arithmetic number, because the mean of its divisors is an integer number (307020).

2^1995539 is an apocalyptic number.

1995539 is a deficient number, since it is larger than the sum of its proper divisors (460621).

1995539 is a wasteful number, since it uses less digits than its factorization.

1995539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21949.

The product of its digits is 54675, while the sum is 41.

The square root of 1995539 is about 1412.6354802284. The cubic root of 1995539 is about 125.8983601255.

The spelling of 1995539 in words is "one million, nine hundred ninety-five thousand, five hundred thirty-nine".