197171339 has 4 divisors (see below), whose sum is σ = 197691960. Its totient is φ = 196650720.

The previous prime is 197171329. The next prime is 197171347. The reversal of 197171339 is 933171791.

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 197171339 - 2⁴ = 197171323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197171296 and 197171305.

It is not an unprimeable number, because it can be changed into a prime (197171329) 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, 259742 + ... + 260499.

It is an arithmetic number, because the mean of its divisors is an integer number (49422990).

Almost surely, 2^197171339 is an apocalyptic number.

197171339 is a deficient number, since it is larger than the sum of its proper divisors (520621).

197171339 is an equidigital number, since it uses as much as digits as its factorization.

197171339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520620.

The product of its digits is 35721, while the sum is 41.

The square root of 197171339 is about 14041.7712201844. The cubic root of 197171339 is about 582.0334284441.

The spelling of 197171339 in words is "one hundred ninety-seven million, one hundred seventy-one thousand, three hundred thirty-nine".