195428571 has 16 divisors (see below), whose sum is σ = 280872480. Its totient is φ = 120153600.

The previous prime is 195428521. The next prime is 195428573. The reversal of 195428571 is 175824591.

It is not a de Polignac number, because 195428571 - 2⁹ = 195428059 is a prime.

195428571 is a modest number, since divided by 428571 gives 195 as remainder.

It is not an unprimeable number, because it can be changed into a prime (195428573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68371 + ... + 71171.

It is an arithmetic number, because the mean of its divisors is an integer number (17554530).

Almost surely, 2^195428571 is an apocalyptic number.

195428571 is a deficient number, since it is larger than the sum of its proper divisors (85443909).

195428571 is a wasteful number, since it uses less digits than its factorization.

195428571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606.

The product of its digits is 100800, while the sum is 42.

The square root of 195428571 is about 13979.5769249287. The cubic root of 195428571 is about 580.3135155976.

The spelling of 195428571 in words is "one hundred ninety-five million, four hundred twenty-eight thousand, five hundred seventy-one".