135445880 has 32 divisors (see below), whose sum is σ = 305316000. Its totient is φ = 54078336.

The previous prime is 135445867. The next prime is 135445903. The reversal of 135445880 is 88544531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21134 + ... + 26786.

It is an arithmetic number, because the mean of its divisors is an integer number (9541125).

Almost surely, 2^135445880 is an apocalyptic number.

135445880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135445880 is an abundant number, since it is smaller than the sum of its proper divisors (169870120).

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

135445880 is a wasteful number, since it uses less digits than its factorization.

135445880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6263 (or 6259 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 135445880 is about 11638.1218416031. The cubic root of 135445880 is about 513.5569367497.

The spelling of 135445880 in words is "one hundred thirty-five million, four hundred forty-five thousand, eight hundred eighty".