7118513 has 2 divisors, whose sum is σ = 7118514. Its totient is φ = 7118512.

The previous prime is 7118497. The next prime is 7118519. The reversal of 7118513 is 3158117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7118224 + 289 = 2668^2 + 17^2 .

It is a cyclic number.

It is not a de Polignac number, because 7118513 - 2⁴ = 7118497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7118519) 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 as a sum of consecutive naturals, namely, 3559256 + 3559257.

It is an arithmetic number, because the mean of its divisors is an integer number (3559257).

Almost surely, 2^7118513 is an apocalyptic number.

It is an amenable number.

7118513 is a deficient number, since it is larger than the sum of its proper divisors (1).

7118513 is an equidigital number, since it uses as much as digits as its factorization.

7118513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 26.

The square root of 7118513 is about 2668.0541598701. The cubic root of 7118513 is about 192.3666406404.

The spelling of 7118513 in words is "seven million, one hundred eighteen thousand, five hundred thirteen".