197001071 has 4 divisors (see below), whose sum is σ = 197343072. Its totient is φ = 196659072.

The previous prime is 197001067. The next prime is 197001097. The reversal of 197001071 is 170100791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170100791 = 7 ⋅24300113.

It is a cyclic number.

It is not a de Polignac number, because 197001071 - 2² = 197001067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197001071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197001971) 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, 170135 + ... + 171288.

It is an arithmetic number, because the mean of its divisors is an integer number (49335768).

Almost surely, 2^197001071 is an apocalyptic number.

197001071 is a deficient number, since it is larger than the sum of its proper divisors (342001).

197001071 is an equidigital number, since it uses as much as digits as its factorization.

197001071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342000.

The product of its (nonzero) digits is 441, while the sum is 26.

The square root of 197001071 is about 14035.7070003616. The cubic root of 197001071 is about 581.8658411931.

The spelling of 197001071 in words is "one hundred ninety-seven million, one thousand, seventy-one".