8138530 has 16 divisors (see below), whose sum is σ = 14696640. Its totient is φ = 3244912.

The previous prime is 8138513. The next prime is 8138539. The reversal of 8138530 is 358318.

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 7 ways as a sum of consecutive naturals, for example, 2457 + ... + 4723.

It is an arithmetic number, because the mean of its divisors is an integer number (918540).

Almost surely, 2^8138530 is an apocalyptic number.

8138530 is a deficient number, since it is larger than the sum of its proper divisors (6558110).

8138530 is a wasteful number, since it uses less digits than its factorization.

8138530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 8138530 is about 2852.8108945389. The cubic root of 8138530 is about 201.1478166495.

It can be divided in two parts, 8138 and 530, that added together give a palindrome (8668).

The spelling of 8138530 in words is "eight million, one hundred thirty-eight thousand, five hundred thirty".