855508135 has 4 divisors (see below), whose sum is σ = 1026609768. Its totient is φ = 684406504.

The previous prime is 855508127. The next prime is 855508169. The reversal of 855508135 is 531805558.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 855508135 - 2³ = 855508127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85550809 + ... + 85550818.

It is an arithmetic number, because the mean of its divisors is an integer number (256652442).

Almost surely, 2^855508135 is an apocalyptic number.

855508135 is a deficient number, since it is larger than the sum of its proper divisors (171101633).

855508135 is a wasteful number, since it uses less digits than its factorization.

855508135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171101632.

The product of its (nonzero) digits is 120000, while the sum is 40.

The square root of 855508135 is about 29249.0706689973. The cubic root of 855508135 is about 949.3099827796.

The spelling of 855508135 in words is "eight hundred fifty-five million, five hundred eight thousand, one hundred thirty-five".