195284549 has 2 divisors, whose sum is σ = 195284550. Its totient is φ = 195284548.

The previous prime is 195284533. The next prime is 195284561. The reversal of 195284549 is 945482591.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120340900 + 74943649 = 10970^2 + 8657^2 .

It is a cyclic number.

It is not a de Polignac number, because 195284549 - 2⁴ = 195284533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195284449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97642274 + 97642275.

It is an arithmetic number, because the mean of its divisors is an integer number (97642275).

Almost surely, 2^195284549 is an apocalyptic number.

It is an amenable number.

195284549 is a deficient number, since it is larger than the sum of its proper divisors (1).

195284549 is an equidigital number, since it uses as much as digits as its factorization.

195284549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 47.

The square root of 195284549 is about 13974.4248182170. The cubic root of 195284549 is about 580.1709256440.

The spelling of 195284549 in words is "one hundred ninety-five million, two hundred eighty-four thousand, five hundred forty-nine".