188805051 has 12 divisors (see below), whose sum is σ = 282122880. Its totient is φ = 121529520.

The previous prime is 188805047. The next prime is 188805061. The reversal of 188805051 is 150508881.

It is not a de Polignac number, because 188805051 - 2² = 188805047 is a prime.

It is a super-2 number, since 2×188805051² = 71294694566225202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 188804997 and 188805015.

It is not an unprimeable number, because it can be changed into a prime (188805061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361435 + ... + 361956.

It is an arithmetic number, because the mean of its divisors is an integer number (23510240).

Almost surely, 2^188805051 is an apocalyptic number.

188805051 is a deficient number, since it is larger than the sum of its proper divisors (93317829).

188805051 is a wasteful number, since it uses less digits than its factorization.

188805051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723426 (or 723423 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 36.

The square root of 188805051 is about 13740.6350289934. The cubic root of 188805051 is about 573.6819726542.

The spelling of 188805051 in words is "one hundred eighty-eight million, eight hundred five thousand, fifty-one".