195056686 has 16 divisors (see below), whose sum is σ = 326608128. Its totient is φ = 86599800.

The previous prime is 195056671. The next prime is 195056689. The reversal of 195056686 is 686650591.

It is a super-2 number, since 2×195056686² = 76094221506605192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195056689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102150 + ... + 104041.

It is an arithmetic number, because the mean of its divisors is an integer number (20413008).

Almost surely, 2^195056686 is an apocalyptic number.

195056686 is a deficient number, since it is larger than the sum of its proper divisors (131551442).

195056686 is a wasteful number, since it uses less digits than its factorization.

195056686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206247.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 195056686 is about 13966.2695806719. The cubic root of 195056686 is about 579.9451850694.

The spelling of 195056686 in words is "one hundred ninety-five million, fifty-six thousand, six hundred eighty-six".