7125839 has 16 divisors (see below), whose sum is σ = 8693568. Its totient is φ = 5701632.

The previous prime is 7125829. The next prime is 7125847. The reversal of 7125839 is 9385217.

7125839 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7125839 - 2⁸ = 7125583 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 7125799 and 7125808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7125809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27599 + ... + 27855.

It is an arithmetic number, because the mean of its divisors is an integer number (543348).

Almost surely, 2^7125839 is an apocalyptic number.

7125839 is a deficient number, since it is larger than the sum of its proper divisors (1567729).

7125839 is a wasteful number, since it uses less digits than its factorization.

7125839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514.

The product of its digits is 15120, while the sum is 35.

The square root of 7125839 is about 2669.4267174807. The cubic root of 7125839 is about 192.4326092322.

The spelling of 7125839 in words is "seven million, one hundred twenty-five thousand, eight hundred thirty-nine".