135275455240 has 96 divisors (see below), whose sum is σ = 329429063880. Its totient is φ = 49966112768.

The previous prime is 135275455229. The next prime is 135275455261. The reversal of 135275455240 is 42554572531.

It can be written as a sum of positive squares in 12 ways, for example, as 97422639876 + 37852815364 = 312126^2 + 194558^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 502284 + ... + 723076.

Almost surely, 2^135275455240 is an apocalyptic number.

135275455240 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 135275455240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164714531940).

135275455240 is an abundant number, since it is smaller than the sum of its proper divisors (194153608640).

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

135275455240 is a wasteful number, since it uses less digits than its factorization.

135275455240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220891 (or 220870 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 43.

The spelling of 135275455240 in words is "one hundred thirty-five billion, two hundred seventy-five million, four hundred fifty-five thousand, two hundred forty".