194055789 has 4 divisors (see below), whose sum is σ = 258741056. Its totient is φ = 129370524.

The previous prime is 194055767. The next prime is 194055857. The reversal of 194055789 is 987550491.

194055789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 194055789 - 2¹⁶ = 193990253 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 (194055089) 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, 32342629 + ... + 32342634.

It is an arithmetic number, because the mean of its divisors is an integer number (64685264).

Almost surely, 2^194055789 is an apocalyptic number.

It is an amenable number.

194055789 is a deficient number, since it is larger than the sum of its proper divisors (64685267).

194055789 is an equidigital number, since it uses as much as digits as its factorization.

194055789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64685266.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 194055789 is about 13930.3908416096. The cubic root of 194055789 is about 578.9515233501.

The spelling of 194055789 in words is "one hundred ninety-four million, fifty-five thousand, seven hundred eighty-nine".