195930193 has 4 divisors (see below), whose sum is σ = 196278768. Its totient is φ = 195581620.

The previous prime is 195930187. The next prime is 195930197. The reversal of 195930193 is 391039591.

195930193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 391039591 = 41 ⋅9537551.

It is a cyclic number.

It is not a de Polignac number, because 195930193 - 2²⁵ = 162375761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195930197) 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, 173443 + ... + 174568.

It is an arithmetic number, because the mean of its divisors is an integer number (49069692).

Almost surely, 2^195930193 is an apocalyptic number.

It is an amenable number.

195930193 is a deficient number, since it is larger than the sum of its proper divisors (348575).

195930193 is an equidigital number, since it uses as much as digits as its factorization.

195930193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348574.

The product of its (nonzero) digits is 32805, while the sum is 40.

The square root of 195930193 is about 13997.5066708325. The cubic root of 195930193 is about 580.8096036191.

The spelling of 195930193 in words is "one hundred ninety-five million, nine hundred thirty thousand, one hundred ninety-three".