135015055 has 32 divisors (see below), whose sum is σ = 190738944. Its totient is φ = 89824896.

The previous prime is 135015031. The next prime is 135015079. The reversal of 135015055 is 550510531.

It is an interprime number because it is at equal distance from previous prime (135015031) and next prime (135015079).

It is not a de Polignac number, because 135015055 - 2¹¹ = 135013007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425757 + ... + 426073.

It is an arithmetic number, because the mean of its divisors is an integer number (5960592).

Almost surely, 2^135015055 is an apocalyptic number.

135015055 is a deficient number, since it is larger than the sum of its proper divisors (55723889).

135015055 is a wasteful number, since it uses less digits than its factorization.

135015055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 135015055 is about 11619.5978846086. The cubic root of 135015055 is about 513.0118526926.

Adding to 135015055 its reverse (550510531), we get a palindrome (685525586).

The spelling of 135015055 in words is "one hundred thirty-five million, fifteen thousand, fifty-five".