4521115213 has 2 divisors, whose sum is σ = 4521115214. Its totient is φ = 4521115212.

The previous prime is 4521115153. The next prime is 4521115219. The reversal of 4521115213 is 3125111254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3046708809 + 1474406404 = 55197^2 + 38398^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521115213 - 2¹³ = 4521107021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4521115219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260557606 + 2260557607.

It is an arithmetic number, because the mean of its divisors is an integer number (2260557607).

Almost surely, 2^4521115213 is an apocalyptic number.

It is an amenable number.

4521115213 is a deficient number, since it is larger than the sum of its proper divisors (1).

4521115213 is an equidigital number, since it uses as much as digits as its factorization.

4521115213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 25.

The square root of 4521115213 is about 67239.2386408413. The cubic root of 4521115213 is about 1653.5418515143.

Adding to 4521115213 its reverse (3125111254), we get a palindrome (7646226467).

The spelling of 4521115213 in words is "four billion, five hundred twenty-one million, one hundred fifteen thousand, two hundred thirteen".