194923229 has 4 divisors (see below), whose sum is σ = 203398176. Its totient is φ = 186448284.

The previous prime is 194923219. The next prime is 194923271. The reversal of 194923229 is 922329491.

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.

It is a cyclic number.

It is not a de Polignac number, because 194923229 - 2¹² = 194919133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194923219) 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, 4237439 + ... + 4237484.

It is an arithmetic number, because the mean of its divisors is an integer number (50849544).

Almost surely, 2^194923229 is an apocalyptic number.

It is an amenable number.

194923229 is a deficient number, since it is larger than the sum of its proper divisors (8474947).

194923229 is an equidigital number, since it uses as much as digits as its factorization.

194923229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8474946.

The product of its digits is 69984, while the sum is 41.

The square root of 194923229 is about 13961.4909304128. The cubic root of 194923229 is about 579.8128895051.

The spelling of 194923229 in words is "one hundred ninety-four million, nine hundred twenty-three thousand, two hundred twenty-nine".