543115213 has 2 divisors, whose sum is σ = 543115214. Its totient is φ = 543115212.

The previous prime is 543115207. The next prime is 543115217. The reversal of 543115213 is 312511345.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444450724 + 98664489 = 21082^2 + 9933^2 .

It is a cyclic number.

It is not a de Polignac number, because 543115213 - 2²¹ = 541018061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (543115217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271557606 + 271557607.

It is an arithmetic number, because the mean of its divisors is an integer number (271557607).

Almost surely, 2^543115213 is an apocalyptic number.

It is an amenable number.

543115213 is a deficient number, since it is larger than the sum of its proper divisors (1).

543115213 is an equidigital number, since it uses as much as digits as its factorization.

543115213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 543115213 is about 23304.8323958788. The cubic root of 543115213 is about 815.8882072636. Note that the first 3 decimals are identical.

Adding to 543115213 its reverse (312511345), we get a palindrome (855626558).

The spelling of 543115213 in words is "five hundred forty-three million, one hundred fifteen thousand, two hundred thirteen".