197271057 has 8 divisors (see below), whose sum is σ = 269145184. Its totient is φ = 128455488.

The previous prime is 197271047. The next prime is 197271097. The reversal of 197271057 is 750172791.

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

It is not a de Polignac number, because 197271057 - 2¹⁵ = 197238289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197271037) 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, 764488 + ... + 764745.

It is an arithmetic number, because the mean of its divisors is an integer number (33643148).

Almost surely, 2^197271057 is an apocalyptic number.

It is an amenable number.

197271057 is a deficient number, since it is larger than the sum of its proper divisors (71874127).

197271057 is a wasteful number, since it uses less digits than its factorization.

197271057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529279.

The product of its (nonzero) digits is 30870, while the sum is 39.

The square root of 197271057 is about 14045.3215342334. The cubic root of 197271057 is about 582.1315316609.

The spelling of 197271057 in words is "one hundred ninety-seven million, two hundred seventy-one thousand, fifty-seven".