135499880 has 32 divisors (see below), whose sum is σ = 311968800. Its totient is φ = 52938816.

The previous prime is 135499867. The next prime is 135499927. The reversal of 135499880 is 88994531.

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, 37670 + ... + 41109.

It is an arithmetic number, because the mean of its divisors is an integer number (9749025).

Almost surely, 2^135499880 is an apocalyptic number.

135499880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135499880 is an abundant number, since it is smaller than the sum of its proper divisors (176468920).

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

135499880 is a wasteful number, since it uses less digits than its factorization.

135499880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78833 (or 78829 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 135499880 is about 11640.4415723803. The cubic root of 135499880 is about 513.6251765268.

The spelling of 135499880 in words is "one hundred thirty-five million, four hundred ninety-nine thousand, eight hundred eighty".