197130233 has 4 divisors (see below), whose sum is σ = 197158500. Its totient is φ = 197101968.

The previous prime is 197130221. The next prime is 197130239. The reversal of 197130233 is 332031791.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 88303609 + 108826624 = 9397^2 + 10432^2 .

It is a cyclic number.

It is not a de Polignac number, because 197130233 - 2²⁰ = 196081657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 197130196 and 197130205.

It is not an unprimeable number, because it can be changed into a prime (197130239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4643 + ... + 20391.

It is an arithmetic number, because the mean of its divisors is an integer number (49289625).

Almost surely, 2^197130233 is an apocalyptic number.

It is an amenable number.

197130233 is a deficient number, since it is larger than the sum of its proper divisors (28267).

197130233 is a wasteful number, since it uses less digits than its factorization.

197130233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28266.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 197130233 is about 14040.3074396539. The cubic root of 197130233 is about 581.9929784662.

The spelling of 197130233 in words is "one hundred ninety-seven million, one hundred thirty thousand, two hundred thirty-three".