8516138 has 4 divisors (see below), whose sum is σ = 12774210. Its totient is φ = 4258068.

The previous prime is 8516083. The next prime is 8516153. The reversal of 8516138 is 8316158.

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

It can be written as a sum of positive squares in only one way, i.e., 8369449 + 146689 = 2893^2 + 383^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2129033 + ... + 2129036.

Almost surely, 2^8516138 is an apocalyptic number.

8516138 is a deficient number, since it is larger than the sum of its proper divisors (4258072).

8516138 is a wasteful number, since it uses less digits than its factorization.

8516138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258071.

The product of its digits is 5760, while the sum is 32.

The square root of 8516138 is about 2918.2422791811. The cubic root of 8516138 is about 204.2118298163.

The spelling of 8516138 in words is "eight million, five hundred sixteen thousand, one hundred thirty-eight".