194239655 has 8 divisors (see below), whose sum is σ = 235150992. Its totient is φ = 154016128.

The previous prime is 194239649. The next prime is 194239663. The reversal of 194239655 is 556932491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194239655 - 2²² = 190045351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 171329 + ... + 172458.

It is an arithmetic number, because the mean of its divisors is an integer number (29393874).

Almost surely, 2^194239655 is an apocalyptic number.

194239655 is a deficient number, since it is larger than the sum of its proper divisors (40911337).

194239655 is a wasteful number, since it uses less digits than its factorization.

194239655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343905.

The product of its digits is 291600, while the sum is 44.

The square root of 194239655 is about 13936.9887350173. The cubic root of 194239655 is about 579.1343159704.

The spelling of 194239655 in words is "one hundred ninety-four million, two hundred thirty-nine thousand, six hundred fifty-five".