1995204127 has 4 divisors (see below), whose sum is σ = 2280233296. Its totient is φ = 1710174960.

The previous prime is 1995204109. The next prime is 1995204137. The reversal of 1995204127 is 7214025991.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1995204127 - 2¹⁹ = 1994679839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1995204127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995204137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142514574 + ... + 142514587.

It is an arithmetic number, because the mean of its divisors is an integer number (570058324).

Almost surely, 2^1995204127 is an apocalyptic number.

1995204127 is a deficient number, since it is larger than the sum of its proper divisors (285029169).

1995204127 is an equidigital number, since it uses as much as digits as its factorization.

1995204127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285029168.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 1995204127 is about 44667.7078771678. The cubic root of 1995204127 is about 1258.9131736331.

The spelling of 1995204127 in words is "one billion, nine hundred ninety-five million, two hundred four thousand, one hundred twenty-seven".