195456427 has 2 divisors, whose sum is σ = 195456428. Its totient is φ = 195456426.

The previous prime is 195456413. The next prime is 195456517. The reversal of 195456427 is 724654591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195456427 - 2¹¹ = 195454379 is a prime.

It is not a weakly prime, because it can be changed into another prime (195456227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97728213 + 97728214.

It is an arithmetic number, because the mean of its divisors is an integer number (97728214).

Almost surely, 2^195456427 is an apocalyptic number.

195456427 is a deficient number, since it is larger than the sum of its proper divisors (1).

195456427 is an equidigital number, since it uses as much as digits as its factorization.

195456427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 43.

The square root of 195456427 is about 13980.5731999800. The cubic root of 195456427 is about 580.3410865326.

It can be divided in two parts, 1954564 and 27, that added together give a palindrome (1954591).

The spelling of 195456427 in words is "one hundred ninety-five million, four hundred fifty-six thousand, four hundred twenty-seven".