135805900 has 18 divisors (see below), whose sum is σ = 294699020. Its totient is φ = 54322320.

The previous prime is 135805897. The next prime is 135805907. The reversal of 135805900 is 9508531.

It is not an unprimeable number, because it can be changed into a prime (135805907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678930 + ... + 679129.

Almost surely, 2^135805900 is an apocalyptic number.

135805900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135805900 is an abundant number, since it is smaller than the sum of its proper divisors (158893120).

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

135805900 is a wasteful number, since it uses less digits than its factorization.

135805900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358073 (or 1358066 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 135805900 is about 11653.5788494351. The cubic root of 135805900 is about 514.0115517699.

The spelling of 135805900 in words is "one hundred thirty-five million, eight hundred five thousand, nine hundred".