197270243 has 4 divisors (see below), whose sum is σ = 198823680. Its totient is φ = 195716808.

The previous prime is 197270239. The next prime is 197270257. The reversal of 197270243 is 342072791.

197270243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 197270243 - 2² = 197270239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197210243) 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, 776528 + ... + 776781.

It is an arithmetic number, because the mean of its divisors is an integer number (49705920).

Almost surely, 2^197270243 is an apocalyptic number.

197270243 is a deficient number, since it is larger than the sum of its proper divisors (1553437).

197270243 is a wasteful number, since it uses less digits than its factorization.

197270243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553436.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 197270243 is about 14045.2925565828. The cubic root of 197270243 is about 582.1307309763.

The spelling of 197270243 in words is "one hundred ninety-seven million, two hundred seventy thousand, two hundred forty-three".