188020107 has 12 divisors (see below), whose sum is σ = 296274264. Its totient is φ = 113951520.

The previous prime is 188020081. The next prime is 188020109. The reversal of 188020107 is 701020881.

It is not a de Polignac number, because 188020107 - 2⁸ = 188019851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188020109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 949498 + ... + 949695.

It is an arithmetic number, because the mean of its divisors is an integer number (24689522).

Almost surely, 2^188020107 is an apocalyptic number.

188020107 is a deficient number, since it is larger than the sum of its proper divisors (108254157).

188020107 is a wasteful number, since it uses less digits than its factorization.

188020107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899210 (or 1899207 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 188020107 is about 13712.0424080441. The cubic root of 188020107 is about 572.8858539291.

Adding to 188020107 its reverse (701020881), we get a palindrome (889040988).

The spelling of 188020107 in words is "one hundred eighty-eight million, twenty thousand, one hundred seven".