135855885 has 32 divisors (see below), whose sum is σ = 238492800. Its totient is φ = 65491200.

The previous prime is 135855883. The next prime is 135855887. The reversal of 135855885 is 588558531.

It is a happy number.

135855885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (135855883) and next prime (135855887).

It is not a de Polignac number, because 135855885 - 2¹ = 135855883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135855883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27591 + ... + 32139.

It is an arithmetic number, because the mean of its divisors is an integer number (7452900).

Almost surely, 2^135855885 is an apocalyptic number.

135855885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135855885 is a deficient number, since it is larger than the sum of its proper divisors (102636915).

135855885 is a wasteful number, since it uses less digits than its factorization.

135855885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749.

The product of its digits is 960000, while the sum is 48.

The square root of 135855885 is about 11655.7232722813. The cubic root of 135855885 is about 514.0746067523.

The spelling of 135855885 in words is "one hundred thirty-five million, eight hundred fifty-five thousand, eight hundred eighty-five".