7130730 has 16 divisors (see below), whose sum is σ = 17113824. Its totient is φ = 1901520.

The previous prime is 7130729. The next prime is 7130731. The reversal of 7130730 is 370317.

It is an interprime number because it is at equal distance from previous prime (7130729) and next prime (7130731).

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7130697 and 7130706.

It is not an unprimeable number, because it can be changed into a prime (7130731) 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 7 ways as a sum of consecutive naturals, for example, 118816 + ... + 118875.

It is an arithmetic number, because the mean of its divisors is an integer number (1069614).

Almost surely, 2^7130730 is an apocalyptic number.

7130730 is an abundant number, since it is smaller than the sum of its proper divisors (9983094).

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

7130730 is a wasteful number, since it uses less digits than its factorization.

7130730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237701.

The product of its (nonzero) digits is 441, while the sum is 21.

The square root of 7130730 is about 2670.3426746393. The cubic root of 7130730 is about 192.4766261607.

The spelling of 7130730 in words is "seven million, one hundred thirty thousand, seven hundred thirty".