542100186 has 12 divisors (see below), whose sum is σ = 1174550442. Its totient is φ = 180700056.

The previous prime is 542100151. The next prime is 542100187. The reversal of 542100186 is 681001245.

542100186 is a `hidden beast` number, since 542 + 100 + 18 + 6 = 666.

542100186 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 501536025 + 40564161 = 22395^2 + 6369^2 .

It is a super-4 number, since 4×542100186⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (542100187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15058321 + ... + 15058356.

Almost surely, 2^542100186 is an apocalyptic number.

542100186 is an abundant number, since it is smaller than the sum of its proper divisors (632450256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542100186 is a wasteful number, since it uses less digits than its factorization.

542100186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30116685 (or 30116682 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 542100186 is about 23283.0450328130. The cubic root of 542100186 is about 815.3796196538.

The spelling of 542100186 in words is "five hundred forty-two million, one hundred thousand, one hundred eighty-six".