136444 has 24 divisors (see below), whose sum is σ = 298368. Its totient is φ = 53040.

The previous prime is 136429. The next prime is 136447. The reversal of 136444 is 444631.

It is a happy number.

136444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

136444 is a modest number, since divided by 444 gives 136 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87 + ... + 529.

It is an arithmetic number, because the mean of its divisors is an integer number (12432).

2¹³⁶⁴⁴⁴ is an apocalyptic number.

136444 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 136444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149184).

136444 is an abundant number, since it is smaller than the sum of its proper divisors (161924).

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

136444 is a wasteful number, since it uses less digits than its factorization.

136444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 463 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 136444 is about 369.3832697890. The cubic root of 136444 is about 51.4815342098.

The spelling of 136444 in words is "one hundred thirty-six thousand, four hundred forty-four".