194855455 has 4 divisors (see below), whose sum is σ = 233826552. Its totient is φ = 155884360.

The previous prime is 194855449. The next prime is 194855459. The reversal of 194855455 is 554558491.

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

It is not a de Polignac number, because 194855455 - 2³ = 194855447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194855459) 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, 19485541 + ... + 19485550.

It is an arithmetic number, because the mean of its divisors is an integer number (58456638).

Almost surely, 2^194855455 is an apocalyptic number.

194855455 is a deficient number, since it is larger than the sum of its proper divisors (38971097).

194855455 is an equidigital number, since it uses as much as digits as its factorization.

194855455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38971096.

The product of its digits is 720000, while the sum is 46.

The square root of 194855455 is about 13959.0635430891. The cubic root of 194855455 is about 579.7456822013.

The spelling of 194855455 in words is "one hundred ninety-four million, eight hundred fifty-five thousand, four hundred fifty-five".