8135657 has 4 divisors (see below), whose sum is σ = 8238720. Its totient is φ = 8032596.

The previous prime is 8135641. The next prime is 8135713. The reversal of 8135657 is 7565318.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8135657 - 2⁴ = 8135641 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (8135627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51413 + ... + 51570.

It is an arithmetic number, because the mean of its divisors is an integer number (2059680).

Almost surely, 2^8135657 is an apocalyptic number.

It is an amenable number.

8135657 is a deficient number, since it is larger than the sum of its proper divisors (103063).

8135657 is a wasteful number, since it uses less digits than its factorization.

8135657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103062.

The product of its digits is 25200, while the sum is 35.

The square root of 8135657 is about 2852.3073116339. The cubic root of 8135657 is about 201.1241446558.

The spelling of 8135657 in words is "eight million, one hundred thirty-five thousand, six hundred fifty-seven".