195438127 has 2 divisors, whose sum is σ = 195438128. Its totient is φ = 195438126.

The previous prime is 195438119. The next prime is 195438209. The reversal of 195438127 is 721834591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195438127 - 2³ = 195438119 is a prime.

It is a super-2 number, since 2×195438127² = 76392122970536258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 195438127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195436127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97719063 + 97719064.

It is an arithmetic number, because the mean of its divisors is an integer number (97719064).

Almost surely, 2^195438127 is an apocalyptic number.

195438127 is a deficient number, since it is larger than the sum of its proper divisors (1).

195438127 is an equidigital number, since it uses as much as digits as its factorization.

195438127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 195438127 is about 13979.9187050569. The cubic root of 195438127 is about 580.3229741012.

The spelling of 195438127 in words is "one hundred ninety-five million, four hundred thirty-eight thousand, one hundred twenty-seven".