135680184 has 80 divisors (see below), whose sum is σ = 390370200. Its totient is φ = 43996608.

The previous prime is 135680177. The next prime is 135680203. The reversal of 135680184 is 481086531.

135680184 is a `hidden beast` number, since 13 + 568 + 0 + 1 + 84 = 666.

It is a super-2 number, since 2×135680184² = 36818224660547712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21147 + ... + 26805.

Almost surely, 2^135680184 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135680184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195185100).

135680184 is an abundant number, since it is smaller than the sum of its proper divisors (254690016).

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

135680184 is a wasteful number, since it uses less digits than its factorization.

135680184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714 (or 5701 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 135680184 is about 11648.1837210786. The cubic root of 135680184 is about 513.8528953689.

The spelling of 135680184 in words is "one hundred thirty-five million, six hundred eighty thousand, one hundred eighty-four".