195185930 has 8 divisors (see below), whose sum is σ = 351334692. Its totient is φ = 78074368.

The previous prime is 195185929. The next prime is 195185933. The reversal of 195185930 is 39581591.

It can be written as a sum of positive squares in 2 ways, for example, as 192460129 + 2725801 = 13873^2 + 1651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (195185933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9759287 + ... + 9759306.

Almost surely, 2^195185930 is an apocalyptic number.

195185930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195185930 is a deficient number, since it is larger than the sum of its proper divisors (156148762).

195185930 is a wasteful number, since it uses less digits than its factorization.

195185930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19518600.

The product of its (nonzero) digits is 48600, while the sum is 41.

The square root of 195185930 is about 13970.8958195242. The cubic root of 195185930 is about 580.0732467938.

The spelling of 195185930 in words is "one hundred ninety-five million, one hundred eighty-five thousand, nine hundred thirty".