188542542 has 8 divisors (see below), whose sum is σ = 377085096. Its totient is φ = 62847512.

The previous prime is 188542531. The next prime is 188542561. The reversal of 188542542 is 245245881.

It is a happy number.

188542542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

188542542 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 188542542.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15711873 + ... + 15711884.

It is an arithmetic number, because the mean of its divisors is an integer number (47135637).

Almost surely, 2^188542542 is an apocalyptic number.

188542542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

188542542 is a wasteful number, since it uses less digits than its factorization.

188542542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31423762.

The product of its digits is 102400, while the sum is 39.

The square root of 188542542 is about 13731.0794186036. The cubic root of 188542542 is about 573.4159724789.

The spelling of 188542542 in words is "one hundred eighty-eight million, five hundred forty-two thousand, five hundred forty-two".