135622 has 16 divisors (see below), whose sum is σ = 221760. Its totient is φ = 61992.

The previous prime is 135617. The next prime is 135623. The reversal of 135622 is 226531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 135622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135623) by changing a digit.

135622 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1593 + ... + 1675.

It is an arithmetic number, because the mean of its divisors is an integer number (13860).

2¹³⁵⁶²² is an apocalyptic number.

135622 is a deficient number, since it is larger than the sum of its proper divisors (86138).

135622 is a wasteful number, since it uses less digits than its factorization.

135622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147.

The product of its digits is 360, while the sum is 19.

The square root of 135622 is about 368.2689234785. The cubic root of 135622 is about 51.3779432684.

Subtracting 135622 from its reverse (226531), we obtain a palindrome (90909).

It can be divided in two parts, 1356 and 22, that added together give a triangular number (1378 = T₅₂).

The spelling of 135622 in words is "one hundred thirty-five thousand, six hundred twenty-two".