135232 has 14 divisors (see below), whose sum is σ = 268478. Its totient is φ = 67584.

The previous prime is 135221. The next prime is 135241. The reversal of 135232 is 232531.

It can be written as a sum of positive squares in only one way, i.e., 69696 + 65536 = 264^2 + 256^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

135232 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 (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 993 + ... + 1120.

It is an arithmetic number, because the mean of its divisors is an integer number (19177).

2¹³⁵²³² is an apocalyptic number.

It is an amenable number.

135232 is a deficient number, since it is larger than the sum of its proper divisors (133246).

135232 is an equidigital number, since it uses as much as digits as its factorization.

135232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125 (or 2115 counting only the distinct ones).

The product of its digits is 180, while the sum is 16.

The square root of 135232 is about 367.7390379060. The cubic root of 135232 is about 51.3286478361.

Adding to 135232 its reverse (232531), we get a palindrome (367763).

It can be divided in two parts, 1352 and 32, that multiplied together give a square (43264 = 208²).

The spelling of 135232 in words is "one hundred thirty-five thousand, two hundred thirty-two".