7140120 has 128 divisors (see below), whose sum is σ = 24192000. Its totient is φ = 1672704.

The previous prime is 7140113. The next prime is 7140127. The reversal of 7140120 is 210417.

It is an interprime number because it is at equal distance from previous prime (7140113) and next prime (7140127).

It is a super-2 number, since 2×7140120² = 101962627228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7140120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35781 + ... + 35979.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

Almost surely, 2^7140120 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 7140120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12096000).

7140120 is an abundant number, since it is smaller than the sum of its proper divisors (17051880).

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

7140120 is a wasteful number, since it uses less digits than its factorization.

7140120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 7140120 is about 2672.1002975188. The cubic root of 7140120 is about 192.5610758019.

Adding to 7140120 its reverse (210417), we get a palindrome (7350537).

It can be divided in two parts, 7140 and 120, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 7140120 in words is "seven million, one hundred forty thousand, one hundred twenty".