195630273 has 6 divisors (see below), whose sum is σ = 282577074. Its totient is φ = 130420176.

The previous prime is 195630247. The next prime is 195630299. The reversal of 195630273 is 372036591.

195630273 is a `hidden beast` number, since 19 + 5 + 630 + 2 + 7 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (195630247) and next prime (195630299).

It can be written as a sum of positive squares in only one way, i.e., 135769104 + 59861169 = 11652^2 + 7737^2 .

It is not a de Polignac number, because 195630273 - 2⁶ = 195630209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195630223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10868340 + ... + 10868357.

It is an arithmetic number, because the mean of its divisors is an integer number (47096179).

Almost surely, 2^195630273 is an apocalyptic number.

It is an amenable number.

195630273 is a deficient number, since it is larger than the sum of its proper divisors (86946801).

195630273 is a wasteful number, since it uses less digits than its factorization.

195630273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21736703 (or 21736700 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

The square root of 195630273 is about 13986.7892312711. The cubic root of 195630273 is about 580.5130943148.

The spelling of 195630273 in words is "one hundred ninety-five million, six hundred thirty thousand, two hundred seventy-three".