186142135146 has 16 divisors (see below), whose sum is σ = 406128295008. Its totient is φ = 56406707600.

The previous prime is 186142135117. The next prime is 186142135147. The reversal of 186142135146 is 641531241681.

186142135146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 186142135098 and 186142135107.

It is not an unprimeable number, because it can be changed into a prime (186142135147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1410167625 + ... + 1410167756.

It is an arithmetic number, because the mean of its divisors is an integer number (25383018438).

Almost surely, 2^186142135146 is an apocalyptic number.

186142135146 is an abundant number, since it is smaller than the sum of its proper divisors (219986159862).

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

186142135146 is a wasteful number, since it uses less digits than its factorization.

186142135146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820335397.

The product of its digits is 138240, while the sum is 42.

The spelling of 186142135146 in words is "one hundred eighty-six billion, one hundred forty-two million, one hundred thirty-five thousand, one hundred forty-six".