196818071 has 4 divisors (see below), whose sum is σ = 199029600. Its totient is φ = 194606544.

The previous prime is 196818049. The next prime is 196818073. The reversal of 196818071 is 170818691.

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 196818071 - 2²⁶ = 129709207 is a prime.

It is a super-3 number, since 3×196818071³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196818073) 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, 1105631 + ... + 1105808.

It is an arithmetic number, because the mean of its divisors is an integer number (49757400).

Almost surely, 2^196818071 is an apocalyptic number.

196818071 is a deficient number, since it is larger than the sum of its proper divisors (2211529).

196818071 is an equidigital number, since it uses as much as digits as its factorization.

196818071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211528.

The product of its (nonzero) digits is 24192, while the sum is 41.

The square root of 196818071 is about 14029.1863983625. The cubic root of 196818071 is about 581.6856146988.

The spelling of 196818071 in words is "one hundred ninety-six million, eight hundred eighteen thousand, seventy-one".