186985134 has 24 divisors (see below), whose sum is σ = 463011120. Its totient is φ = 53424288.

The previous prime is 186985109. The next prime is 186985151. The reversal of 186985134 is 431589681.

186985134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 186985134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 741879 + ... + 742130.

It is an arithmetic number, because the mean of its divisors is an integer number (19292130).

Almost surely, 2^186985134 is an apocalyptic number.

186985134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

186985134 is an abundant number, since it is smaller than the sum of its proper divisors (276025986).

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

186985134 is a wasteful number, since it uses less digits than its factorization.

186985134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484024 (or 1484021 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 186985134 is about 13674.2507655813. The cubic root of 186985134 is about 571.8327526257.

It can be divided in two parts, 18698 and 5134, that added together give a palindrome (23832).

The spelling of 186985134 in words is "one hundred eighty-six million, nine hundred eighty-five thousand, one hundred thirty-four".