195283564281 has 63 divisors (see below), whose sum is σ = 317298340479. Its totient is φ = 120079048752.

The previous prime is 195283564249. The next prime is 195283564303. The reversal of 195283564281 is 182465382591.

The square root of 195283564281 is 441909.

It is a perfect power (a square), and thus also a powerful number.

195283564281 is a `hidden beast` number, since 1 + 9 + 5 + 2 + 8 + 356 + 4 + 281 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28888101225 + 166395463056 = 169965^2 + 407916^2 .

It is not a de Polignac number, because 195283564281 - 2⁵ = 195283564249 is a prime.

It is a super-2 number, since 2×195283564281² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (195283564081) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 155109430 + ... + 155110688.

Almost surely, 2^195283564281 is an apocalyptic number.

195283564281 is the 441909-th square number.

195283564281 is the 220955-th centered octagonal number.

It is an amenable number.

195283564281 is a deficient number, since it is larger than the sum of its proper divisors (122014776198).

195283564281 is an frugal number, since it uses more digits than its factorization.

195283564281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562 (or 1275 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The spelling of 195283564281 in words is "one hundred ninety-five billion, two hundred eighty-three million, five hundred sixty-four thousand, two hundred eighty-one".