135540808 has 32 divisors (see below), whose sum is σ = 274196160. Its totient is φ = 62441280.

The previous prime is 135540803. The next prime is 135540827. The reversal of 135540808 is 808045531.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (135540803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83541 + ... + 85147.

It is an arithmetic number, because the mean of its divisors is an integer number (8568630).

Almost surely, 2^135540808 is an apocalyptic number.

It is an amenable number.

135540808 is an abundant number, since it is smaller than the sum of its proper divisors (138655352).

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

135540808 is a wasteful number, since it uses less digits than its factorization.

135540808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 135540808 is about 11642.1994485578. The cubic root of 135540808 is about 513.6768851459.

The spelling of 135540808 in words is "one hundred thirty-five million, five hundred forty thousand, eight hundred eight".