7132813 has 2 divisors, whose sum is σ = 7132814. Its totient is φ = 7132812.

The previous prime is 7132781. The next prime is 7132841. The reversal of 7132813 is 3182317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6215049 + 917764 = 2493^2 + 958^2 .

It is an emirp because it is prime and its reverse (3182317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7132813 - 2⁵ = 7132781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7130813) 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, 3566406 + 3566407.

It is an arithmetic number, because the mean of its divisors is an integer number (3566407).

Almost surely, 2^7132813 is an apocalyptic number.

It is an amenable number.

7132813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7132813 is an equidigital number, since it uses as much as digits as its factorization.

7132813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The square root of 7132813 is about 2670.7326710100. The cubic root of 7132813 is about 192.4953661672.

The spelling of 7132813 in words is "seven million, one hundred thirty-two thousand, eight hundred thirteen".