135323928 has 96 divisors (see below), whose sum is σ = 398361600. Its totient is φ = 41342400.

The previous prime is 135323921. The next prime is 135323933. The reversal of 135323928 is 829323531.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 135323892 and 135323901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135323921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40813 + ... + 44003.

It is an arithmetic number, because the mean of its divisors is an integer number (4149600).

Almost surely, 2^135323928 is an apocalyptic number.

135323928 is a gapful number since it is divisible by the number (18) 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 135323928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199180800).

135323928 is an abundant number, since it is smaller than the sum of its proper divisors (263037672).

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

135323928 is a wasteful number, since it uses less digits than its factorization.

135323928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253 (or 3246 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 135323928 is about 11632.8813283726. The cubic root of 135323928 is about 513.4027592988.

It can be divided in two parts, 1353 and 23928, that added together give a square (25281 = 159²).

The spelling of 135323928 in words is "one hundred thirty-five million, three hundred twenty-three thousand, nine hundred twenty-eight".