7312530 has 32 divisors (see below), whose sum is σ = 18475200. Its totient is φ = 1847232.

The previous prime is 7312517. The next prime is 7312531. The reversal of 7312530 is 352137.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7312497 and 7312506.

It is not an unprimeable number, because it can be changed into a prime (7312531) 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, 5845 + ... + 6984.

It is an arithmetic number, because the mean of its divisors is an integer number (577350).

Almost surely, 2^7312530 is an apocalyptic number.

7312530 is an abundant number, since it is smaller than the sum of its proper divisors (11162670).

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

7312530 is a wasteful number, since it uses less digits than its factorization.

7312530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12858.

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

The square root of 7312530 is about 2704.1690035943. The cubic root of 7312530 is about 194.0986673498.

Adding to 7312530 its reverse (352137), we get a palindrome (7664667).

The spelling of 7312530 in words is "seven million, three hundred twelve thousand, five hundred thirty".