195430086 has 24 divisors (see below), whose sum is σ = 445718520. Its totient is φ = 61714656.

The previous prime is 195430021. The next prime is 195430091. The reversal of 195430086 is 680034591.

It is a self number, because there is not a number n which added to its sum of digits gives 195430086.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 285375 + ... + 286058.

It is an arithmetic number, because the mean of its divisors is an integer number (18571605).

Almost surely, 2^195430086 is an apocalyptic number.

195430086 is an abundant number, since it is smaller than the sum of its proper divisors (250288434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195430086 is a wasteful number, since it uses less digits than its factorization.

195430086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571460 (or 571457 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 195430086 is about 13979.6311110129. The cubic root of 195430086 is about 580.3150151611.

The spelling of 195430086 in words is "one hundred ninety-five million, four hundred thirty thousand, eighty-six".