135440560 has 40 divisors (see below), whose sum is σ = 328595040. Its totient is φ = 51820032.

The previous prime is 135440549. The next prime is 135440561. The reversal of 135440560 is 65044531.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×135440560² = 36688290586227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135440561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34965 + ... + 38644.

It is an arithmetic number, because the mean of its divisors is an integer number (8214876).

Almost surely, 2^135440560 is an apocalyptic number.

135440560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135440560 is an abundant number, since it is smaller than the sum of its proper divisors (193154480).

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

135440560 is a wasteful number, since it uses less digits than its factorization.

135440560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73645 (or 73639 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 135440560 is about 11637.8932801431. The cubic root of 135440560 is about 513.5502128866.

It can be divided in two parts, 1354 and 40560, that added together give a palindrome (41914).

The spelling of 135440560 in words is "one hundred thirty-five million, four hundred forty thousand, five hundred sixty".