194242775 has 12 divisors (see below), whose sum is σ = 245987232. Its totient is φ = 152087040.

The previous prime is 194242759. The next prime is 194242777. The reversal of 194242775 is 577242491.

It is not a de Polignac number, because 194242775 - 2⁴ = 194242759 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 (194242777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81482 + ... + 83831.

It is an arithmetic number, because the mean of its divisors is an integer number (20498936).

Almost surely, 2^194242775 is an apocalyptic number.

194242775 is a deficient number, since it is larger than the sum of its proper divisors (51744457).

194242775 is a wasteful number, since it uses less digits than its factorization.

194242775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165370 (or 165365 counting only the distinct ones).

The product of its digits is 141120, while the sum is 41.

The square root of 194242775 is about 13937.1006669250. The cubic root of 194242775 is about 579.1374167609.

The spelling of 194242775 in words is "one hundred ninety-four million, two hundred forty-two thousand, seven hundred seventy-five".