8121039 has 8 divisors (see below), whose sum is σ = 11177472. Its totient is φ = 5239320.

The previous prime is 8121013. The next prime is 8121049. The reversal of 8121039 is 9301218.

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

It is not a de Polignac number, because 8121039 - 2⁹ = 8120527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43569 + ... + 43754.

It is an arithmetic number, because the mean of its divisors is an integer number (1397184).

Almost surely, 2^8121039 is an apocalyptic number.

8121039 is a deficient number, since it is larger than the sum of its proper divisors (3056433).

8121039 is a wasteful number, since it uses less digits than its factorization.

8121039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87357.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 8121039 is about 2849.7436726836. The cubic root of 8121039 is about 201.0036137070.

The spelling of 8121039 in words is "eight million, one hundred twenty-one thousand, thirty-nine".