195422869 has 2 divisors, whose sum is σ = 195422870. Its totient is φ = 195422868.

The previous prime is 195422867. The next prime is 195422879. The reversal of 195422869 is 968224591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184280625 + 11142244 = 13575^2 + 3338^2 .

It is a cyclic number.

It is not a de Polignac number, because 195422869 - 2¹ = 195422867 is a prime.

It is a super-2 number, since 2×195422869² = 76380195456382322, which contains 22 as substring.

Together with 195422867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195422867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97711434 + 97711435.

It is an arithmetic number, because the mean of its divisors is an integer number (97711435).

Almost surely, 2^195422869 is an apocalyptic number.

It is an amenable number.

195422869 is a deficient number, since it is larger than the sum of its proper divisors (1).

195422869 is an equidigital number, since it uses as much as digits as its factorization.

195422869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 46.

The square root of 195422869 is about 13979.3729830776. The cubic root of 195422869 is about 580.3078716261.

The spelling of 195422869 in words is "one hundred ninety-five million, four hundred twenty-two thousand, eight hundred sixty-nine".