188500197 has 32 divisors (see below), whose sum is σ = 270699520. Its totient is φ = 116328960.

The previous prime is 188500189. The next prime is 188500219. The reversal of 188500197 is 791005881.

188500197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 188500197 - 2³ = 188500189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188500997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 569322 + ... + 569652.

It is an arithmetic number, because the mean of its divisors is an integer number (8459360).

Almost surely, 2^188500197 is an apocalyptic number.

It is an amenable number.

188500197 is a deficient number, since it is larger than the sum of its proper divisors (82199323).

188500197 is a wasteful number, since it uses less digits than its factorization.

188500197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 188500197 is about 13729.5373920610. The cubic root of 188500197 is about 573.3730412000.

Adding to 188500197 its sum of digits (39), we get a triangular number (188500236 = T₁₉₄₁₆).

The spelling of 188500197 in words is "one hundred eighty-eight million, five hundred thousand, one hundred ninety-seven".