7125220 has 12 divisors (see below), whose sum is σ = 14963004. Its totient is φ = 2850080.

The previous prime is 7125203. The next prime is 7125263. The reversal of 7125220 is 225217.

It can be written as a sum of positive squares in 2 ways, for example, as 1705636 + 5419584 = 1306^2 + 2328^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178111 + ... + 178150.

It is an arithmetic number, because the mean of its divisors is an integer number (1246917).

Almost surely, 2^7125220 is an apocalyptic number.

It is an amenable number.

7125220 is an abundant number, since it is smaller than the sum of its proper divisors (7837784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7125220 is a wasteful number, since it uses less digits than its factorization.

7125220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356270 (or 356268 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 7125220 is about 2669.3107724654. The cubic root of 7125220 is about 192.4270370587.

The spelling of 7125220 in words is "seven million, one hundred twenty-five thousand, two hundred twenty".