188897051 has 12 divisors (see below), whose sum is σ = 218011248. Its totient is φ = 160330512.

The previous prime is 188897041. The next prime is 188897057. The reversal of 188897051 is 150798881.

188897051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-188897051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188896987 and 188897005.

It is not an unprimeable number, because it can be changed into a prime (188897057) 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, 78965 + ... + 81321.

It is an arithmetic number, because the mean of its divisors is an integer number (18167604).

Almost surely, 2^188897051 is an apocalyptic number.

188897051 is a deficient number, since it is larger than the sum of its proper divisors (29114197).

188897051 is an equidigital number, since it uses as much as digits as its factorization.

188897051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578 (or 2471 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 47.

The square root of 188897051 is about 13743.9823559258. The cubic root of 188897051 is about 573.7751378369.

The spelling of 188897051 in words is "one hundred eighty-eight million, eight hundred ninety-seven thousand, fifty-one".