197161443 has 24 divisors (see below), whose sum is σ = 287901120. Its totient is φ = 130014720.

The previous prime is 197161429. The next prime is 197161453. The reversal of 197161443 is 344161791.

197161443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 197161443 - 2⁵ = 197161411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197161398 and 197161407.

It is not an unprimeable number, because it can be changed into a prime (197161403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 558355 + ... + 558707.

It is an arithmetic number, because the mean of its divisors is an integer number (11995880).

Almost surely, 2^197161443 is an apocalyptic number.

197161443 is a deficient number, since it is larger than the sum of its proper divisors (90739677).

197161443 is a wasteful number, since it uses less digits than its factorization.

197161443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 856 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 197161443 is about 14041.4188385647. The cubic root of 197161443 is about 582.0236908909.

The spelling of 197161443 in words is "one hundred ninety-seven million, one hundred sixty-one thousand, four hundred forty-three".