197571516 has 12 divisors (see below), whose sum is σ = 461000232. Its totient is φ = 65857168.

The previous prime is 197571509. The next prime is 197571529. The reversal of 197571516 is 615175791.

197571516 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8232135 + ... + 8232158.

It is an arithmetic number, because the mean of its divisors is an integer number (38416686).

Almost surely, 2^197571516 is an apocalyptic number.

It is an amenable number.

197571516 is an abundant number, since it is smaller than the sum of its proper divisors (263428716).

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

197571516 is a wasteful number, since it uses less digits than its factorization.

197571516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16464300 (or 16464298 counting only the distinct ones).

The product of its digits is 66150, while the sum is 42.

The square root of 197571516 is about 14056.0135173526. The cubic root of 197571516 is about 582.4269254486.

The spelling of 197571516 in words is "one hundred ninety-seven million, five hundred seventy-one thousand, five hundred sixteen".