135423880 has 32 divisors (see below), whose sum is σ = 309873600. Its totient is φ = 53250496.

The previous prime is 135423877. The next prime is 135423917. The reversal of 135423880 is 88324531.

It is a happy number.

135423880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 26332 + ... + 31051.

It is an arithmetic number, because the mean of its divisors is an integer number (9683550).

Almost surely, 2^135423880 is an apocalyptic number.

135423880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135423880 is an abundant number, since it is smaller than the sum of its proper divisors (174449720).

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

135423880 is a wasteful number, since it uses less digits than its factorization.

135423880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57453 (or 57449 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 135423880 is about 11637.1766335310. The cubic root of 135423880 is about 513.5291301592.

The spelling of 135423880 in words is "one hundred thirty-five million, four hundred twenty-three thousand, eight hundred eighty".