135045440 has 56 divisors (see below), whose sum is σ = 322600320. Its totient is φ = 53846528.

The previous prime is 135045409. The next prime is 135045457. The reversal of 135045440 is 44540531.

It is a congruent number.

It is an unprimeable 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, 160541 + ... + 161379.

It is an arithmetic number, because the mean of its divisors is an integer number (5760720).

Almost surely, 2^135045440 is an apocalyptic number.

135045440 is a gapful number since it is divisible by the number (10) 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 135045440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161300160).

135045440 is an abundant number, since it is smaller than the sum of its proper divisors (187554880).

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

135045440 is an equidigital number, since it uses as much as digits as its factorization.

135045440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 135045440 is about 11620.9053003628. The cubic root of 135045440 is about 513.0503340702.

Adding to 135045440 its reverse (44540531), we get a palindrome (179585971).

The spelling of 135045440 in words is "one hundred thirty-five million, forty-five thousand, four hundred forty".