196213197 has 4 divisors (see below), whose sum is σ = 261617600. Its totient is φ = 130808796.

The previous prime is 196213163. The next prime is 196213211. The reversal of 196213197 is 791312691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 196213197 - 2⁸ = 196212941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196213097) 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, 32702197 + ... + 32702202.

It is an arithmetic number, because the mean of its divisors is an integer number (65404400).

Almost surely, 2^196213197 is an apocalyptic number.

It is an amenable number.

196213197 is a deficient number, since it is larger than the sum of its proper divisors (65404403).

196213197 is an equidigital number, since it uses as much as digits as its factorization.

196213197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65404402.

The product of its digits is 20412, while the sum is 39.

The square root of 196213197 is about 14007.6121091355. The cubic root of 196213197 is about 581.0891119514.

The spelling of 196213197 in words is "one hundred ninety-six million, two hundred thirteen thousand, one hundred ninety-seven".