197581560 has 192 divisors, whose sum is σ = 673073280. Its totient is φ = 45991680.

The previous prime is 197581529. The next prime is 197581567. The reversal of 197581560 is 65185791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197581567) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3348811 + ... + 3348869.

It is an arithmetic number, because the mean of its divisors is an integer number (3505590).

Almost surely, 2^197581560 is an apocalyptic number.

197581560 is a gapful number since it is divisible by the number (10) 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 197581560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336536640).

197581560 is an abundant number, since it is smaller than the sum of its proper divisors (475491720).

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

197581560 is a wasteful number, since it uses less digits than its factorization.

197581560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 42.

The square root of 197581560 is about 14056.3707976134. The cubic root of 197581560 is about 582.4367949497.

The spelling of 197581560 in words is "one hundred ninety-seven million, five hundred eighty-one thousand, five hundred sixty".