7130650421 has 2 divisors, whose sum is σ = 7130650422. Its totient is φ = 7130650420.

The previous prime is 7130650409. The next prime is 7130650441. The reversal of 7130650421 is 1240560317.

7130650421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6215587921 + 915062500 = 78839^2 + 30250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7130650421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7130650441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3565325210 + 3565325211.

It is an arithmetic number, because the mean of its divisors is an integer number (3565325211).

Almost surely, 2^7130650421 is an apocalyptic number.

It is an amenable number.

7130650421 is a deficient number, since it is larger than the sum of its proper divisors (1).

7130650421 is an equidigital number, since it uses as much as digits as its factorization.

7130650421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 7130650421 is about 84443.1786528669. The cubic root of 7130650421 is about 1924.7591014452.

The spelling of 7130650421 in words is "seven billion, one hundred thirty million, six hundred fifty thousand, four hundred twenty-one".