136556 has 12 divisors (see below), whose sum is σ = 273168. Its totient is φ = 58512.

The previous prime is 136547. The next prime is 136559. The reversal of 136556 is 655631.

136556 is an admirable number.

It is a super-2 number, since 2×136556² = 37295082272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136559) by changing a digit.

136556 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2411 + ... + 2466.

It is an arithmetic number, because the mean of its divisors is an integer number (22764).

2¹³⁶⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

136556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

136556 is a wasteful number, since it uses less digits than its factorization.

136556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888 (or 4886 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 136556 is about 369.5348427415. The cubic root of 136556 is about 51.4956165559.

The spelling of 136556 in words is "one hundred thirty-six thousand, five hundred fifty-six".