7512540 has 96 divisors (see below), whose sum is σ = 24858624. Its totient is φ = 1658880.

The previous prime is 7512497. The next prime is 7512563. The reversal of 7512540 is 452157.

7512540 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 7512540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12732 + ... + 13308.

It is an arithmetic number, because the mean of its divisors is an integer number (258944).

Almost surely, 2^7512540 is an apocalyptic number.

7512540 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7512540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12429312).

7512540 is an abundant number, since it is smaller than the sum of its proper divisors (17346084).

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

7512540 is a wasteful number, since it uses less digits than its factorization.

7512540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 7512540 is about 2740.9013116127. The cubic root of 7512540 is about 195.8524156246.

Adding to 7512540 its reverse (452157), we get a palindrome (7964697).

The spelling of 7512540 in words is "seven million, five hundred twelve thousand, five hundred forty".