7125830 has 16 divisors (see below), whose sum is σ = 13173840. Its totient is φ = 2773152.

The previous prime is 7125829. The next prime is 7125847. The reversal of 7125830 is 385217.

It is a self number, because there is not a number n which added to its sum of digits gives 7125830.

It is a congruent number.

It is an unprimeable number.

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, 9260 + ... + 9999.

It is an arithmetic number, because the mean of its divisors is an integer number (823365).

Almost surely, 2^7125830 is an apocalyptic number.

7125830 is a deficient number, since it is larger than the sum of its proper divisors (6048010).

7125830 is a wasteful number, since it uses less digits than its factorization.

7125830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19303.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 7125830 is about 2669.4250317250. The cubic root of 7125830 is about 192.4325282174.

The spelling of 7125830 in words is "seven million, one hundred twenty-five thousand, eight hundred thirty".