194811943 has 2 divisors, whose sum is σ = 194811944. Its totient is φ = 194811942.

The previous prime is 194811917. The next prime is 194811971. The reversal of 194811943 is 349118491.

194811943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 194811943 - 2⁹ = 194811431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 194811896 and 194811905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194811913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97405971 + 97405972.

It is an arithmetic number, because the mean of its divisors is an integer number (97405972).

Almost surely, 2^194811943 is an apocalyptic number.

194811943 is a deficient number, since it is larger than the sum of its proper divisors (1).

194811943 is an equidigital number, since it uses as much as digits as its factorization.

194811943 is an evil number, because the sum of its binary digits is even.

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

The square root of 194811943 is about 13957.5048987991. The cubic root of 194811943 is about 579.7025258147.

The spelling of 194811943 in words is "one hundred ninety-four million, eight hundred eleven thousand, nine hundred forty-three".