135488880 has 60 divisors (see below), whose sum is σ = 455019240. Its totient is φ = 36130176.

The previous prime is 135488863. The next prime is 135488891. The reversal of 135488880 is 88884531.

135488880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93370 + ... + 94809.

It is an arithmetic number, because the mean of its divisors is an integer number (7583654).

Almost surely, 2^135488880 is an apocalyptic number.

135488880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135488880 is an abundant number, since it is smaller than the sum of its proper divisors (319530360).

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

135488880 is a wasteful number, since it uses less digits than its factorization.

135488880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188198 (or 188189 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The square root of 135488880 is about 11639.9690721239. The cubic root of 135488880 is about 513.6112773021.

The spelling of 135488880 in words is "one hundred thirty-five million, four hundred eighty-eight thousand, eight hundred eighty".