1995027173 has 2 divisors, whose sum is σ = 1995027174. Its totient is φ = 1995027172.

The previous prime is 1995027157. The next prime is 1995027191. The reversal of 1995027173 is 3717205991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1994694244 + 332929 = 44662^2 + 577^2 .

It is an emirp because it is prime and its reverse (3717205991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1995027173 - 2⁴ = 1995027157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1995027373) 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 as a sum of consecutive naturals, namely, 997513586 + 997513587.

It is an arithmetic number, because the mean of its divisors is an integer number (997513587).

Almost surely, 2^1995027173 is an apocalyptic number.

It is an amenable number.

1995027173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1995027173 is an equidigital number, since it uses as much as digits as its factorization.

1995027173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 1995027173 is about 44665.7270510623. The cubic root of 1995027173 is about 1258.8759550005.

The spelling of 1995027173 in words is "one billion, nine hundred ninety-five million, twenty-seven thousand, one hundred seventy-three".