135207040 has 64 divisors (see below), whose sum is σ = 340272000. Its totient is φ = 51231744.

The previous prime is 135207031. The next prime is 135207067. The reversal of 135207040 is 40702531.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6601 + ... + 17719.

It is an arithmetic number, because the mean of its divisors is an integer number (5316750).

Almost surely, 2^135207040 is an apocalyptic number.

135207040 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 135207040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170136000).

135207040 is an abundant number, since it is smaller than the sum of its proper divisors (205064960).

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

135207040 is a wasteful number, since it uses less digits than its factorization.

135207040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11157 (or 11145 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 135207040 is about 11627.8562082613. The cubic root of 135207040 is about 513.2548970316.

Adding to 135207040 its reverse (40702531), we get a palindrome (175909571).

The spelling of 135207040 in words is "one hundred thirty-five million, two hundred seven thousand, forty".