195527873 has 2 divisors, whose sum is σ = 195527874. Its totient is φ = 195527872.

The previous prime is 195527861. The next prime is 195527903. The reversal of 195527873 is 378725591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158961664 + 36566209 = 12608^2 + 6047^2 .

It is an emirp because it is prime and its reverse (378725591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 195527873 - 2⁶ = 195527809 is a prime.

It is a super-2 number, since 2×195527873² = 76462298239808258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (195527833) 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 as a sum of consecutive naturals, namely, 97763936 + 97763937.

It is an arithmetic number, because the mean of its divisors is an integer number (97763937).

Almost surely, 2^195527873 is an apocalyptic number.

It is an amenable number.

195527873 is a deficient number, since it is larger than the sum of its proper divisors (1).

195527873 is an equidigital number, since it uses as much as digits as its factorization.

195527873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 47.

The square root of 195527873 is about 13983.1281550303. The cubic root of 195527873 is about 580.4117894148.

The spelling of 195527873 in words is "one hundred ninety-five million, five hundred twenty-seven thousand, eight hundred seventy-three".