7122425 has 6 divisors (see below), whose sum is σ = 8831838. Its totient is φ = 5697920.

The previous prime is 7122413. The next prime is 7122443. The reversal of 7122425 is 5242217.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1207801 + 5914624 = 1099^2 + 2432^2 .

It is not a de Polignac number, because 7122425 - 2⁶ = 7122361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7122425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142424 + ... + 142473.

It is an arithmetic number, because the mean of its divisors is an integer number (1471973).

Almost surely, 2^7122425 is an apocalyptic number.

It is an amenable number.

7122425 is a deficient number, since it is larger than the sum of its proper divisors (1709413).

7122425 is a wasteful number, since it uses less digits than its factorization.

7122425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284907 (or 284902 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 7122425 is about 2668.7871777270. The cubic root of 7122425 is about 192.4018727405.

The spelling of 7122425 in words is "seven million, one hundred twenty-two thousand, four hundred twenty-five".