194923227 has 4 divisors (see below), whose sum is σ = 259897640. Its totient is φ = 129948816.

The previous prime is 194923219. The next prime is 194923271. The reversal of 194923227 is 722329491.

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

It is not a de Polignac number, because 194923227 - 2³ = 194923219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194923217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32487202 + ... + 32487207.

It is an arithmetic number, because the mean of its divisors is an integer number (64974410).

Almost surely, 2^194923227 is an apocalyptic number.

194923227 is a deficient number, since it is larger than the sum of its proper divisors (64974413).

194923227 is an equidigital number, since it uses as much as digits as its factorization.

194923227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64974412.

The product of its digits is 54432, while the sum is 39.

The square root of 194923227 is about 13961.4908587873. The cubic root of 194923227 is about 579.8128875221.

The spelling of 194923227 in words is "one hundred ninety-four million, nine hundred twenty-three thousand, two hundred twenty-seven".