7142120 has 64 divisors (see below), whose sum is σ = 17107200. Its totient is φ = 2679040.

The previous prime is 7142117. The next prime is 7142129. The reversal of 7142120 is 212417.

7142120 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (7142129) 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, 54455 + ... + 54585.

It is an arithmetic number, because the mean of its divisors is an integer number (267300).

Almost surely, 2^7142120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7142120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8553600).

7142120 is an abundant number, since it is smaller than the sum of its proper divisors (9965080).

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

7142120 is a wasteful number, since it uses less digits than its factorization.

7142120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 7142120 is about 2672.4745087652. The cubic root of 7142120 is about 192.5790533802.

Adding to 7142120 its reverse (212417), we get a palindrome (7354537).

The spelling of 7142120 in words is "seven million, one hundred forty-two thousand, one hundred twenty".