195396281 has 2 divisors, whose sum is σ = 195396282. Its totient is φ = 195396280.

The previous prime is 195396277. The next prime is 195396347. The reversal of 195396281 is 182693591.

It is a happy number.

195396281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105904681 + 89491600 = 10291^2 + 9460^2 .

It is a cyclic number.

It is not a de Polignac number, because 195396281 - 2² = 195396277 is a prime.

It is a super-2 number, since 2×195396281² = 76359413257261922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (195396241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97698140 + 97698141.

It is an arithmetic number, because the mean of its divisors is an integer number (97698141).

Almost surely, 2^195396281 is an apocalyptic number.

It is an amenable number.

195396281 is a deficient number, since it is larger than the sum of its proper divisors (1).

195396281 is an equidigital number, since it uses as much as digits as its factorization.

195396281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 195396281 is about 13978.4219781777. The cubic root of 195396281 is about 580.2815527591.

The spelling of 195396281 in words is "one hundred ninety-five million, three hundred ninety-six thousand, two hundred eighty-one".