136724 has 24 divisors (see below), whose sum is σ = 288960. Its totient is φ = 55296.

The previous prime is 136711. The next prime is 136727. The reversal of 136724 is 427631.

It is an Ulam number.

It is a plaindrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 136724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136727) by changing a digit.

136724 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 7 ways as a sum of consecutive naturals, for example, 404 + ... + 660.

It is an arithmetic number, because the mean of its divisors is an integer number (12040).

2¹³⁶⁷²⁴ is an apocalyptic number.

136724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144480).

136724 is an abundant number, since it is smaller than the sum of its proper divisors (152236).

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

136724 is a wasteful number, since it uses less digits than its factorization.

136724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 285 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 136724 is about 369.7620856713. The cubic root of 136724 is about 51.5167256448.

The spelling of 136724 in words is "one hundred thirty-six thousand, seven hundred twenty-four".