188641113 has 16 divisors (see below), whose sum is σ = 259618560. Its totient is φ = 121776336.

The previous prime is 188641111. The next prime is 188641121. The reversal of 188641113 is 311146881.

It is a happy number.

It is not a de Polignac number, because 188641113 - 2¹ = 188641111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188641111) 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, 3906 + ... + 19812.

It is an arithmetic number, because the mean of its divisors is an integer number (16226160).

Almost surely, 2^188641113 is an apocalyptic number.

It is an amenable number.

188641113 is a deficient number, since it is larger than the sum of its proper divisors (70977447).

188641113 is a wasteful number, since it uses less digits than its factorization.

188641113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16036.

The product of its digits is 4608, while the sum is 33.

The square root of 188641113 is about 13734.6682886774. The cubic root of 188641113 is about 573.5158833321.

Adding to 188641113 its reverse (311146881), we get a palindrome (499787994).

The spelling of 188641113 in words is "one hundred eighty-eight million, six hundred forty-one thousand, one hundred thirteen".