8138995 has 8 divisors (see below), whose sum is σ = 10103760. Its totient is φ = 6286560.

The previous prime is 8138993. The next prime is 8139013. The reversal of 8138995 is 5998318.

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

It is not a de Polignac number, because 8138995 - 2¹ = 8138993 is a prime.

It is a super-2 number, since 2×8138995² = 132486479220050, which contains 22 as substring.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (8138993) 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 7 ways as a sum of consecutive naturals, for example, 27921 + ... + 28210.

It is an arithmetic number, because the mean of its divisors is an integer number (1262970).

Almost surely, 2^8138995 is an apocalyptic number.

8138995 is a deficient number, since it is larger than the sum of its proper divisors (1964765).

8138995 is a wasteful number, since it uses less digits than its factorization.

8138995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56165.

The product of its digits is 77760, while the sum is 43.

The square root of 8138995 is about 2852.8923919419. The cubic root of 8138995 is about 201.1516474786.

The spelling of 8138995 in words is "eight million, one hundred thirty-eight thousand, nine hundred ninety-five".