197531112 has 64 divisors (see below), whose sum is σ = 508939200. Its totient is φ = 63848960.

The previous prime is 197531111. The next prime is 197531137. The reversal of 197531112 is 211135791.

197531112 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 197531112.

It is not an unprimeable number, because it can be changed into a prime (197531111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193339 + ... + 194357.

It is an arithmetic number, because the mean of its divisors is an integer number (7952175).

Almost surely, 2^197531112 is an apocalyptic number.

197531112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197531112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254469600).

197531112 is an abundant number, since it is smaller than the sum of its proper divisors (311408088).

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

197531112 is a wasteful number, since it uses less digits than its factorization.

197531112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266 (or 1262 counting only the distinct ones).

The product of its digits is 1890, while the sum is 30.

The square root of 197531112 is about 14054.5761942508. The cubic root of 197531112 is about 582.3872200256.

The spelling of 197531112 in words is "one hundred ninety-seven million, five hundred thirty-one thousand, one hundred twelve".