136544 has 24 divisors (see below), whose sum is σ = 285768. Its totient is φ = 64000.

The previous prime is 136541. The next prime is 136547. The reversal of 136544 is 445631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (136541) and next prime (136547).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136541) 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, 419 + ... + 669.

It is an arithmetic number, because the mean of its divisors is an integer number (11907).

2¹³⁶⁵⁴⁴ 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 136544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142884).

136544 is an abundant number, since it is smaller than the sum of its proper divisors (149224).

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

136544 is a wasteful number, since it uses less digits than its factorization.

136544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 270 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 136544 is about 369.5186057562. The cubic root of 136544 is about 51.4941081015.

It can be divided in two parts, 136 and 544, that multiplied together give a square (73984 = 272²).

The spelling of 136544 in words is "one hundred thirty-six thousand, five hundred forty-four".