135125655 has 32 divisors (see below), whose sum is σ = 247684608. Its totient is φ = 61622400.

The previous prime is 135125647. The next prime is 135125657. The reversal of 135125655 is 556521531.

135125655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135125655 - 2³ = 135125647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135125657) 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, 50245 + ... + 52865.

It is an arithmetic number, because the mean of its divisors is an integer number (7740144).

Almost surely, 2^135125655 is an apocalyptic number.

135125655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135125655 is a deficient number, since it is larger than the sum of its proper divisors (112558953).

135125655 is a wasteful number, since it uses less digits than its factorization.

135125655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127.

The product of its digits is 22500, while the sum is 33.

The square root of 135125655 is about 11624.3561112003. The cubic root of 135125655 is about 513.1518954086.

The spelling of 135125655 in words is "one hundred thirty-five million, one hundred twenty-five thousand, six hundred fifty-five".