197165118 has 16 divisors (see below), whose sum is σ = 394974720. Its totient is φ = 65614296.

The previous prime is 197165117. The next prime is 197165123. The reversal of 197165118 is 811561791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197165117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22830 + ... + 30257.

It is an arithmetic number, because the mean of its divisors is an integer number (24685920).

Almost surely, 2^197165118 is an apocalyptic number.

197165118 is an abundant number, since it is smaller than the sum of its proper divisors (197809602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197165118 is a wasteful number, since it uses less digits than its factorization.

197165118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53711.

The product of its digits is 15120, while the sum is 39.

The square root of 197165118 is about 14041.5497007987. The cubic root of 197165118 is about 582.0273070878.

The spelling of 197165118 in words is "one hundred ninety-seven million, one hundred sixty-five thousand, one hundred eighteen".