8138535 has 16 divisors (see below), whose sum is σ = 13077504. Its totient is φ = 4321952.

The previous prime is 8138513. The next prime is 8138539. The reversal of 8138535 is 5358318.

It is a cyclic number.

It is not a de Polignac number, because 8138535 - 2⁸ = 8138279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8138496 and 8138505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2914 + ... + 4976.

It is an arithmetic number, because the mean of its divisors is an integer number (817344).

Almost surely, 2^8138535 is an apocalyptic number.

8138535 is a deficient number, since it is larger than the sum of its proper divisors (4938969).

8138535 is a wasteful number, since it uses less digits than its factorization.

8138535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334.

The product of its digits is 14400, while the sum is 33.

The square root of 8138535 is about 2852.8117708675. The cubic root of 8138535 is about 201.1478578419.

The spelling of 8138535 in words is "eight million, one hundred thirty-eight thousand, five hundred thirty-five".