197011200 has 216 divisors, whose sum is σ = 673179136. Its totient is φ = 50688000.

The previous prime is 197011193. The next prime is 197011223. The reversal of 197011200 is 2110791.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct 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 (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 595035 + ... + 595365.

Almost surely, 2^197011200 is an apocalyptic number.

197011200 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 197011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336589568).

197011200 is an abundant number, since it is smaller than the sum of its proper divisors (476167936).

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

197011200 is a wasteful number, since it uses less digits than its factorization.

197011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 197011200 is about 14036.0678254275. The cubic root of 197011200 is about 581.8758134199.

Adding to 197011200 its reverse (2110791), we get a palindrome (199121991).

The spelling of 197011200 in words is "one hundred ninety-seven million, eleven thousand, two hundred".