135550 has 12 divisors (see below), whose sum is σ = 252216. Its totient is φ = 54200.

The previous prime is 135533. The next prime is 135559. The reversal of 135550 is 55531.

135550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1306 + ... + 1405.

It is an arithmetic number, because the mean of its divisors is an integer number (21018).

2¹³⁵⁵⁵⁰ is an apocalyptic number.

135550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135550 is a deficient number, since it is larger than the sum of its proper divisors (116666).

135550 is a wasteful number, since it uses less digits than its factorization.

135550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 135550 is about 368.1711558501. The cubic root of 135550 is about 51.3688496928.

Subtracting from 135550 its sum of digits (19), we obtain a palindrome (135531).

The spelling of 135550 in words is "one hundred thirty-five thousand, five hundred fifty".