194173057 has 16 divisors (see below), whose sum is σ = 217208320. Its totient is φ = 173394000.

The previous prime is 194173051. The next prime is 194173081. The reversal of 194173057 is 750371491.

It is not a de Polignac number, because 194173057 - 2¹⁹ = 193648769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (194173051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66682 + ... + 69532.

It is an arithmetic number, because the mean of its divisors is an integer number (13575520).

Almost surely, 2^194173057 is an apocalyptic number.

It is an amenable number.

194173057 is a deficient number, since it is larger than the sum of its proper divisors (23035263).

194173057 is an equidigital number, since it uses as much as digits as its factorization.

194173057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921 (or 2895 counting only the distinct ones).

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

The square root of 194173057 is about 13934.5992766208. The cubic root of 194173057 is about 579.0681200881.

The spelling of 194173057 in words is "one hundred ninety-four million, one hundred seventy-three thousand, fifty-seven".