194317057 has 8 divisors (see below), whose sum is σ = 213060672. Its totient is φ = 175753200.

The previous prime is 194317051. The next prime is 194317069. The reversal of 194317057 is 750713491.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194317057 is a prime.

It is a super-2 number, since 2×194317057² = 75518237282282498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (194317051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42669 + ... + 47002.

It is an arithmetic number, because the mean of its divisors is an integer number (26632584).

Almost surely, 2^194317057 is an apocalyptic number.

It is an amenable number.

194317057 is a deficient number, since it is larger than the sum of its proper divisors (18743615).

194317057 is a wasteful number, since it uses less digits than its factorization.

194317057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89879.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 194317057 is about 13939.7653136629. The cubic root of 194317057 is about 579.2112316092.

The spelling of 194317057 in words is "one hundred ninety-four million, three hundred seventeen thousand, fifty-seven".