194914381 has 4 divisors (see below), whose sum is σ = 195121152. Its totient is φ = 194707612.

The previous prime is 194914373. The next prime is 194914387. The reversal of 194914381 is 183419491.

194914381 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 a cyclic number.

It is not a de Polignac number, because 194914381 - 2³ = 194914373 is a prime.

It is a super-2 number, since 2×194914381² = 75983231841226322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194914387) 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, 101965 + ... + 103858.

It is an arithmetic number, because the mean of its divisors is an integer number (48780288).

Almost surely, 2^194914381 is an apocalyptic number.

It is an amenable number.

194914381 is a deficient number, since it is larger than the sum of its proper divisors (206771).

194914381 is an equidigital number, since it uses as much as digits as its factorization.

194914381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206770.

The product of its digits is 31104, while the sum is 40.

The square root of 194914381 is about 13961.1740552147. The cubic root of 194914381 is about 579.8041163724.

The spelling of 194914381 in words is "one hundred ninety-four million, nine hundred fourteen thousand, three hundred eighty-one".