195084289 has 2 divisors, whose sum is σ = 195084290. Its totient is φ = 195084288.

The previous prime is 195084269. The next prime is 195084293. The reversal of 195084289 is 982480591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107474689 + 87609600 = 10367^2 + 9360^2 .

It is a cyclic number.

It is not a de Polignac number, because 195084289 - 2⁵ = 195084257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (195084269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97542144 + 97542145.

It is an arithmetic number, because the mean of its divisors is an integer number (97542145).

It is a Proth number, since it is equal to 11907 ⋅ 2¹⁴ + 1 and 11907 < 2¹⁴.

Almost surely, 2^195084289 is an apocalyptic number.

It is an amenable number.

195084289 is a deficient number, since it is larger than the sum of its proper divisors (1).

195084289 is an equidigital number, since it uses as much as digits as its factorization.

195084289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 195084289 is about 13967.2577480334. The cubic root of 195084289 is about 579.9725403171.

The spelling of 195084289 in words is "one hundred ninety-five million, eighty-four thousand, two hundred eighty-nine".