194700971 has 4 divisors (see below), whose sum is σ = 194938944. Its totient is φ = 194463000.

The previous prime is 194700967. The next prime is 194700991. The reversal of 194700971 is 179007491.

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 194700971 - 2² = 194700967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194700901) 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 3 ways as a sum of consecutive naturals, for example, 117755 + ... + 119396.

It is an arithmetic number, because the mean of its divisors is an integer number (48734736).

Almost surely, 2^194700971 is an apocalyptic number.

194700971 is a deficient number, since it is larger than the sum of its proper divisors (237973).

194700971 is an equidigital number, since it uses as much as digits as its factorization.

194700971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237972.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 194700971 is about 13953.5289801541. The cubic root of 194700971 is about 579.5924316616.

The spelling of 194700971 in words is "one hundred ninety-four million, seven hundred thousand, nine hundred seventy-one".