135605500 has 24 divisors (see below), whose sum is σ = 296163504. Its totient is φ = 54242000.

The previous prime is 135605471. The next prime is 135605507. The reversal of 135605500 is 5506531.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135605507) by changing a digit.

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, 135106 + ... + 136105.

It is an arithmetic number, because the mean of its divisors is an integer number (12340146).

Almost surely, 2^135605500 is an apocalyptic number.

135605500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135605500 is an abundant number, since it is smaller than the sum of its proper divisors (160558004).

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

135605500 is a wasteful number, since it uses less digits than its factorization.

135605500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271230 (or 271218 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 135605500 is about 11644.9774581147. The cubic root of 135605500 is about 513.7585960836.

The spelling of 135605500 in words is "one hundred thirty-five million, six hundred five thousand, five hundred".