194085743 has 4 divisors (see below), whose sum is σ = 194152608. Its totient is φ = 194018880.

The previous prime is 194085739. The next prime is 194085767. The reversal of 194085743 is 347580491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347580491 = 101 ⋅3441391.

It is a cyclic number.

It is not a de Polignac number, because 194085743 - 2² = 194085739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194085743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194085733) 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, 28871 + ... + 34952.

It is an arithmetic number, because the mean of its divisors is an integer number (48538152).

Almost surely, 2^194085743 is an apocalyptic number.

194085743 is a deficient number, since it is larger than the sum of its proper divisors (66865).

194085743 is an equidigital number, since it uses as much as digits as its factorization.

194085743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66864.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 194085743 is about 13931.4659314804. The cubic root of 194085743 is about 578.9813103541.

The spelling of 194085743 in words is "one hundred ninety-four million, eighty-five thousand, seven hundred forty-three".