188501113 has 2 divisors, whose sum is σ = 188501114. Its totient is φ = 188501112.

The previous prime is 188501087. The next prime is 188501153. The reversal of 188501113 is 311105881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186404409 + 2096704 = 13653^2 + 1448^2 .

It is a cyclic number.

It is not a de Polignac number, because 188501113 - 2⁵ = 188501081 is a prime.

It is equal to p_10476820 and since 188501113 and 10476820 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (188501153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94250556 + 94250557.

It is an arithmetic number, because the mean of its divisors is an integer number (94250557).

Almost surely, 2^188501113 is an apocalyptic number.

It is an amenable number.

188501113 is a deficient number, since it is larger than the sum of its proper divisors (1).

188501113 is an equidigital number, since it uses as much as digits as its factorization.

188501113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 28.

The square root of 188501113 is about 13729.5707507555. The cubic root of 188501113 is about 573.3739699504.

Adding to 188501113 its reverse (311105881), we get a palindrome (499606994).

The spelling of 188501113 in words is "one hundred eighty-eight million, five hundred one thousand, one hundred thirteen".