8122539 has 8 divisors (see below), whose sum is σ = 10915840. Its totient is φ = 5372136.

The previous prime is 8122537. The next prime is 8122561. The reversal of 8122539 is 9352218.

It is a happy number.

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

It is not a de Polignac number, because 8122539 - 2¹ = 8122537 is a prime.

It is a Duffinian number.

8122539 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8122537) 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, 10279 + ... + 11040.

It is an arithmetic number, because the mean of its divisors is an integer number (1364480).

Almost surely, 2^8122539 is an apocalyptic number.

8122539 is a deficient number, since it is larger than the sum of its proper divisors (2793301).

8122539 is a wasteful number, since it uses less digits than its factorization.

8122539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21449.

The product of its digits is 4320, while the sum is 30.

The square root of 8122539 is about 2850.0068420971. The cubic root of 8122539 is about 201.0159884314.

The spelling of 8122539 in words is "eight million, one hundred twenty-two thousand, five hundred thirty-nine".