197171263 has 6 divisors (see below), whose sum is σ = 197831144. Its totient is φ = 196513464.

The previous prime is 197171257. The next prime is 197171267. The reversal of 197171263 is 362171791.

197171263 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 197171263 - 2⁹ = 197170751 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 (197171267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150670 + ... + 151972.

Almost surely, 2^197171263 is an apocalyptic number.

197171263 is a deficient number, since it is larger than the sum of its proper divisors (659881).

197171263 is an frugal number, since it uses more digits than its factorization.

197171263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081 (or 1692 counting only the distinct ones).

The product of its digits is 15876, while the sum is 37.

The square root of 197171263 is about 14041.7685139729. The cubic root of 197171263 is about 582.0333536622.

The spelling of 197171263 in words is "one hundred ninety-seven million, one hundred seventy-one thousand, two hundred sixty-three".