195487423 has 4 divisors (see below), whose sum is σ = 195606360. Its totient is φ = 195368488.

The previous prime is 195487399. The next prime is 195487433. The reversal of 195487423 is 324784591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324784591 = 5869 ⋅55339.

It is a cyclic number.

It is not a de Polignac number, because 195487423 - 2⁹ = 195486911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195487423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195487433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56968 + ... + 60301.

It is an arithmetic number, because the mean of its divisors is an integer number (48901590).

Almost surely, 2^195487423 is an apocalyptic number.

195487423 is a deficient number, since it is larger than the sum of its proper divisors (118937).

195487423 is a wasteful number, since it uses less digits than its factorization.

195487423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118936.

The product of its digits is 241920, while the sum is 43.

The square root of 195487423 is about 13981.6816942741. The cubic root of 195487423 is about 580.3717622554.

The spelling of 195487423 in words is "one hundred ninety-five million, four hundred eighty-seven thousand, four hundred twenty-three".