7130312657 has 4 divisors (see below), whose sum is σ = 7678798260. Its totient is φ = 6581827056.

The previous prime is 7130312641. The next prime is 7130312687. The reversal of 7130312657 is 7562130317.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2655237841 + 4475074816 = 51529^2 + 66896^2 .

It is a cyclic number.

It is not a de Polignac number, because 7130312657 - 2⁴ = 7130312641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7130312617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274242782 + ... + 274242807.

It is an arithmetic number, because the mean of its divisors is an integer number (1919699565).

Almost surely, 2^7130312657 is an apocalyptic number.

It is an amenable number.

7130312657 is a deficient number, since it is larger than the sum of its proper divisors (548485603).

7130312657 is a wasteful number, since it uses less digits than its factorization.

7130312657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548485602.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 7130312657 is about 84441.1786807835. The cubic root of 7130312657 is about 1924.7287103607.

The spelling of 7130312657 in words is "seven billion, one hundred thirty million, three hundred twelve thousand, six hundred fifty-seven".