8557135 has 4 divisors (see below), whose sum is σ = 10268568. Its totient is φ = 6845704.

The previous prime is 8557123. The next prime is 8557139. The reversal of 8557135 is 5317558.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5317558 = 2 ⋅2658779.

It is a cyclic number.

It is not a de Polignac number, because 8557135 - 2⁷ = 8557007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8557135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8557139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855709 + ... + 855718.

It is an arithmetic number, because the mean of its divisors is an integer number (2567142).

Almost surely, 2^8557135 is an apocalyptic number.

8557135 is a deficient number, since it is larger than the sum of its proper divisors (1711433).

8557135 is a wasteful number, since it uses less digits than its factorization.

8557135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711432.

The product of its digits is 21000, while the sum is 34.

The square root of 8557135 is about 2925.2581082701. The cubic root of 8557135 is about 204.5389997813.

The spelling of 8557135 in words is "eight million, five hundred fifty-seven thousand, one hundred thirty-five".