7120144 has 20 divisors (see below), whose sum is σ = 14607324. Its totient is φ = 3350528.

The previous prime is 7120123. The next prime is 7120147. The reversal of 7120144 is 4410217.

It can be written as a sum of positive squares in 2 ways, for example, as 6310144 + 810000 = 2512^2 + 900^2 .

It is not an unprimeable number, because it can be changed into a prime (7120147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12817 + ... + 13360.

Almost surely, 2^7120144 is an apocalyptic number.

It is an amenable number.

7120144 is an abundant number, since it is smaller than the sum of its proper divisors (7487180).

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

7120144 is a wasteful number, since it uses less digits than its factorization.

7120144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26202 (or 26196 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 7120144 is about 2668.3597958296. The cubic root of 7120144 is about 192.3813312568.

The spelling of 7120144 in words is "seven million, one hundred twenty thousand, one hundred forty-four".