7180513 has 2 divisors, whose sum is σ = 7180514. Its totient is φ = 7180512.

The previous prime is 7180507. The next prime is 7180543. The reversal of 7180513 is 3150817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5419584 + 1760929 = 2328^2 + 1327^2 .

It is an emirp because it is prime and its reverse (3150817) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7180513 is a prime.

7180513 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7180543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3590256 + 3590257.

It is an arithmetic number, because the mean of its divisors is an integer number (3590257).

Almost surely, 2^7180513 is an apocalyptic number.

It is an amenable number.

7180513 is a deficient number, since it is larger than the sum of its proper divisors (1).

7180513 is an equidigital number, since it uses as much as digits as its factorization.

7180513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 7180513 is about 2679.6479246349. The cubic root of 7180513 is about 192.9235112620.

The spelling of 7180513 in words is "seven million, one hundred eighty thousand, five hundred thirteen".