196512871 has 2 divisors, whose sum is σ = 196512872. Its totient is φ = 196512870.

The previous prime is 196512853. The next prime is 196512887. The reversal of 196512871 is 178215691.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196512871 - 2⁹ = 196512359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196516871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98256435 + 98256436.

It is an arithmetic number, because the mean of its divisors is an integer number (98256436).

Almost surely, 2^196512871 is an apocalyptic number.

196512871 is a deficient number, since it is larger than the sum of its proper divisors (1).

196512871 is an equidigital number, since it uses as much as digits as its factorization.

196512871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 40.

The square root of 196512871 is about 14018.3048547248. The cubic root of 196512871 is about 581.3847915552.

It can be divided in two parts, 19651 and 2871, that added together give a palindrome (22522).

The spelling of 196512871 in words is "one hundred ninety-six million, five hundred twelve thousand, eight hundred seventy-one".