7321130 has 32 divisors (see below), whose sum is σ = 13910400. Its totient is φ = 2768832.

The previous prime is 7321129. The next prime is 7321147. The reversal of 7321130 is 311237.

It is a junction number, because it is equal to n+sod(n) for n = 7321099 and 7321108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31856 + ... + 32084.

It is an arithmetic number, because the mean of its divisors is an integer number (434700).

Almost surely, 2^7321130 is an apocalyptic number.

7321130 is a deficient number, since it is larger than the sum of its proper divisors (6589270).

7321130 is a wasteful number, since it uses less digits than its factorization.

7321130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 7321130 is about 2705.7586736440. The cubic root of 7321130 is about 194.1747283294.

Adding to 7321130 its reverse (311237), we get a palindrome (7632367).

The spelling of 7321130 in words is "seven million, three hundred twenty-one thousand, one hundred thirty".