195058091 has 4 divisors (see below), whose sum is σ = 195419184. Its totient is φ = 194697000.

The previous prime is 195058081. The next prime is 195058099. The reversal of 195058091 is 190850591.

195058091 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 an emirpimes, since its reverse is a distinct semiprime: 190850591 = 2081 ⋅91711.

It is a cyclic number.

It is not a de Polignac number, because 195058091 - 2⁶ = 195058027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195058099) 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, 179735 + ... + 180816.

It is an arithmetic number, because the mean of its divisors is an integer number (48854796).

Almost surely, 2^195058091 is an apocalyptic number.

195058091 is a deficient number, since it is larger than the sum of its proper divisors (361093).

195058091 is an equidigital number, since it uses as much as digits as its factorization.

195058091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361092.

The product of its (nonzero) digits is 16200, while the sum is 38.

The square root of 195058091 is about 13966.3198803407. The cubic root of 195058091 is about 579.9465775211.

The spelling of 195058091 in words is "one hundred ninety-five million, fifty-eight thousand, ninety-one".