135021340 has 12 divisors (see below), whose sum is σ = 283544856. Its totient is φ = 54008528.

The previous prime is 135021269. The next prime is 135021373. The reversal of 135021340 is 43120531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3375514 + ... + 3375553.

It is an arithmetic number, because the mean of its divisors is an integer number (23628738).

Almost surely, 2^135021340 is an apocalyptic number.

135021340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135021340 is an abundant number, since it is smaller than the sum of its proper divisors (148523516).

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

135021340 is a wasteful number, since it uses less digits than its factorization.

135021340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751076 (or 6751074 counting only the distinct ones).

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

The square root of 135021340 is about 11619.8683297187. The cubic root of 135021340 is about 513.0198128653.

Adding to 135021340 its reverse (43120531), we get a palindrome (178141871).

The spelling of 135021340 in words is "one hundred thirty-five million, twenty-one thousand, three hundred forty".