186485136 has 20 divisors (see below), whose sum is σ = 481753392. Its totient is φ = 62161696.

The previous prime is 186485129. The next prime is 186485137. The reversal of 186485136 is 631584681.

It is not an unprimeable number, because it can be changed into a prime (186485137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1942506 + ... + 1942601.

Almost surely, 2^186485136 is an apocalyptic number.

186485136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

186485136 is an abundant number, since it is smaller than the sum of its proper divisors (295268256).

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

186485136 is a wasteful number, since it uses less digits than its factorization.

186485136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885118 (or 3885112 counting only the distinct ones).

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

The square root of 186485136 is about 13655.9560631982. The cubic root of 186485136 is about 571.3226043028.

The spelling of 186485136 in words is "one hundred eighty-six million, four hundred eighty-five thousand, one hundred thirty-six".