136506 has 8 divisors (see below), whose sum is σ = 273024. Its totient is φ = 45500.

The previous prime is 136501. The next prime is 136511. The reversal of 136506 is 605631.

It is an interprime number because it is at equal distance from previous prime (136501) and next prime (136511).

It is a sphenic number, since it is the product of 3 distinct primes.

136506 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136506.

It is not an unprimeable number, because it can be changed into a prime (136501) 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, 11370 + ... + 11381.

It is an arithmetic number, because the mean of its divisors is an integer number (34128).

2¹³⁶⁵⁰⁶ is an apocalyptic number.

136506 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.

136506 is a wasteful number, since it uses less digits than its factorization.

136506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22756.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 136506 is about 369.4671839284. The cubic root of 136506 is about 51.4893307461.

The spelling of 136506 in words is "one hundred thirty-six thousand, five hundred six".