8065138 has 8 divisors (see below), whose sum is σ = 12109788. Its totient is φ = 4028544.

The previous prime is 8065133. The next prime is 8065171. The reversal of 8065138 is 8315608.

It can be written as a sum of positive squares in 2 ways, for example, as 5745609 + 2319529 = 2397^2 + 1523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8065133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2670 + ... + 4822.

Almost surely, 2^8065138 is an apocalyptic number.

8065138 is a deficient number, since it is larger than the sum of its proper divisors (4044650).

8065138 is a wasteful number, since it uses less digits than its factorization.

8065138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 8065138 is about 2839.9186608070. The cubic root of 8065138 is about 200.5413500452.

The spelling of 8065138 in words is "eight million, sixty-five thousand, one hundred thirty-eight".