135028020 has 24 divisors (see below), whose sum is σ = 378078624. Its totient is φ = 36007456.

The previous prime is 135027983. The next prime is 135028043. The reversal of 135028020 is 20820531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125174 + ... + 1125293.

It is an arithmetic number, because the mean of its divisors is an integer number (15753276).

Almost surely, 2^135028020 is an apocalyptic number.

135028020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135028020 is an abundant number, since it is smaller than the sum of its proper divisors (243050604).

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

135028020 is a wasteful number, since it uses less digits than its factorization.

135028020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250479 (or 2250477 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 135028020 is about 11620.1557648768. The cubic root of 135028020 is about 513.0282730486.

Adding to 135028020 its reverse (20820531), we get a palindrome (155848551).

The spelling of 135028020 in words is "one hundred thirty-five million, twenty-eight thousand, twenty".