194810971 has 4 divisors (see below), whose sum is σ = 205064200. Its totient is φ = 184557744.

The previous prime is 194810969. The next prime is 194810977. The reversal of 194810971 is 179018491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 194810971 - 2¹ = 194810969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194810977) 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, 5126586 + ... + 5126623.

It is an arithmetic number, because the mean of its divisors is an integer number (51266050).

Almost surely, 2^194810971 is an apocalyptic number.

194810971 is a deficient number, since it is larger than the sum of its proper divisors (10253229).

194810971 is a wasteful number, since it uses less digits than its factorization.

194810971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253228.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 194810971 is about 13957.4700787786. The cubic root of 194810971 is about 579.7015616852.

The spelling of 194810971 in words is "one hundred ninety-four million, eight hundred ten thousand, nine hundred seventy-one".