195493243 has 4 divisors (see below), whose sum is σ = 213265368. Its totient is φ = 177721120.

The previous prime is 195493229. The next prime is 195493247. The reversal of 195493243 is 342394591.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 195493243 - 2⁵ = 195493211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195493196 and 195493205.

It is not an unprimeable number, because it can be changed into a prime (195493247) 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, 8886046 + ... + 8886067.

It is an arithmetic number, because the mean of its divisors is an integer number (53316342).

Almost surely, 2^195493243 is an apocalyptic number.

195493243 is a deficient number, since it is larger than the sum of its proper divisors (17772125).

195493243 is a wasteful number, since it uses less digits than its factorization.

195493243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17772124.

The product of its digits is 116640, while the sum is 40.

The square root of 195493243 is about 13981.8898221950. The cubic root of 195493243 is about 580.3775217566.

The spelling of 195493243 in words is "one hundred ninety-five million, four hundred ninety-three thousand, two hundred forty-three".