135555155 has 8 divisors (see below), whose sum is σ = 165423600. Its totient is φ = 106605856.

The previous prime is 135555131. The next prime is 135555181. The reversal of 135555155 is 551555531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135555155 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229460 + ... + 230049.

It is an arithmetic number, because the mean of its divisors is an integer number (20677950).

Almost surely, 2^135555155 is an apocalyptic number.

135555155 is a deficient number, since it is larger than the sum of its proper divisors (29868445).

135555155 is an equidigital number, since it uses as much as digits as its factorization.

135555155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459573.

The product of its digits is 46875, while the sum is 35.

The square root of 135555155 is about 11642.8155958943. The cubic root of 135555155 is about 513.6950087461.

The spelling of 135555155 in words is "one hundred thirty-five million, five hundred fifty-five thousand, one hundred fifty-five".