7523130 has 32 divisors (see below), whose sum is σ = 18355968. Its totient is φ = 1972800.

The previous prime is 7523101. The next prime is 7523137. The reversal of 7523130 is 313257.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7523097 and 7523106.

It is not an unprimeable number, because it can be changed into a prime (7523137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226 + ... + 3885.

It is an arithmetic number, because the mean of its divisors is an integer number (573624).

Almost surely, 2^7523130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7523130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9177984).

7523130 is an abundant number, since it is smaller than the sum of its proper divisors (10832838).

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

7523130 is a wasteful number, since it uses less digits than its factorization.

7523130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4182.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 7523130 is about 2742.8324775677. The cubic root of 7523130 is about 195.9443997504.

Adding to 7523130 its reverse (313257), we get a palindrome (7836387).

The spelling of 7523130 in words is "seven million, five hundred twenty-three thousand, one hundred thirty".