186136136 has 16 divisors (see below), whose sum is σ = 349723440. Its totient is φ = 92876560.

The previous prime is 186136129. The next prime is 186136147. The reversal of 186136136 is 631631681.

It is a happy number.

It is a super-4 number, since 4×186136136⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 186136096 and 186136105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19766 + ... + 27621.

It is an arithmetic number, because the mean of its divisors is an integer number (21857715).

Almost surely, 2^186136136 is an apocalyptic number.

It is an amenable number.

186136136 is a deficient number, since it is larger than the sum of its proper divisors (163587304).

186136136 is a wasteful number, since it uses less digits than its factorization.

186136136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47884 (or 47880 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 186136136 is about 13643.1717719891. The cubic root of 186136136 is about 570.9659787341.

The spelling of 186136136 in words is "one hundred eighty-six million, one hundred thirty-six thousand, one hundred thirty-six".