195726865 has 16 divisors (see below), whose sum is σ = 251693568. Its totient is φ = 145590016.

The previous prime is 195726863. The next prime is 195726871. The reversal of 195726865 is 568627591.

It is a cyclic number.

It is not a de Polignac number, because 195726865 - 2¹ = 195726863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195726863) 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, 6817 + ... + 20926.

It is an arithmetic number, because the mean of its divisors is an integer number (15730848).

Almost surely, 2^195726865 is an apocalyptic number.

It is an amenable number.

195726865 is a deficient number, since it is larger than the sum of its proper divisors (55966703).

195726865 is a wasteful number, since it uses less digits than its factorization.

195726865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27848.

The product of its digits is 907200, while the sum is 49.

The square root of 195726865 is about 13990.2417777535. The cubic root of 195726865 is about 580.6086209322.

The spelling of 195726865 in words is "one hundred ninety-five million, seven hundred twenty-six thousand, eight hundred sixty-five".