196571297 has 8 divisors (see below), whose sum is σ = 213567144. Its totient is φ = 179843328.

The previous prime is 196571293. The next prime is 196571311. The reversal of 196571297 is 792175691.

It can be written as a sum of positive squares in 4 ways, for example, as 33651601 + 162919696 = 5801^2 + 12764^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196571297 - 2² = 196571293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196571293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65438 + ... + 68375.

It is an arithmetic number, because the mean of its divisors is an integer number (26695893).

Almost surely, 2^196571297 is an apocalyptic number.

It is an amenable number.

196571297 is a deficient number, since it is larger than the sum of its proper divisors (16995847).

196571297 is a wasteful number, since it uses less digits than its factorization.

196571297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133939.

The product of its digits is 238140, while the sum is 47.

The square root of 196571297 is about 14020.3886180091. The cubic root of 196571297 is about 581.4424037646.

The spelling of 196571297 in words is "one hundred ninety-six million, five hundred seventy-one thousand, two hundred ninety-seven".