135855000 has 120 divisors (see below), whose sum is σ = 459930900. Its totient is φ = 36216000.

The previous prime is 135854987. The next prime is 135855019. The reversal of 135855000 is 558531.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 43491 + ... + 46509.

Almost surely, 2^135855000 is an apocalyptic number.

135855000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135855000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229965450).

135855000 is an abundant number, since it is smaller than the sum of its proper divisors (324075900).

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

135855000 is a wasteful number, since it uses less digits than its factorization.

135855000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 135855000 is about 11655.6853080374. The cubic root of 135855000 is about 514.0734904786.

The spelling of 135855000 in words is "one hundred thirty-five million, eight hundred fifty-five thousand".