135808780 has 24 divisors (see below), whose sum is σ = 285542208. Its totient is φ = 54258048.

The previous prime is 135808763. The next prime is 135808807. The reversal of 135808780 is 87808531.

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, 15117 + ... + 22363.

It is an arithmetic number, because the mean of its divisors is an integer number (11897592).

Almost surely, 2^135808780 is an apocalyptic number.

135808780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135808780 is an abundant number, since it is smaller than the sum of its proper divisors (149733428).

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

135808780 is a wasteful number, since it uses less digits than its factorization.

135808780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193 (or 8191 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 135808780 is about 11653.7024159706. The cubic root of 135808780 is about 514.0151852468.

The spelling of 135808780 in words is "one hundred thirty-five million, eight hundred eight thousand, seven hundred eighty".