213315143 has 2 divisors, whose sum is σ = 213315144. Its totient is φ = 213315142.

The previous prime is 213315119. The next prime is 213315173. The reversal of 213315143 is 341513312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213315143 - 2¹⁰ = 213314119 is a prime.

It is a super-2 number, since 2×213315143² = 91006700466220898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213315173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106657571 + 106657572.

It is an arithmetic number, because the mean of its divisors is an integer number (106657572).

Almost surely, 2^213315143 is an apocalyptic number.

213315143 is a deficient number, since it is larger than the sum of its proper divisors (1).

213315143 is an equidigital number, since it uses as much as digits as its factorization.

213315143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 213315143 is about 14605.3121500364. The cubic root of 213315143 is about 597.5036494236.

Adding to 213315143 its reverse (341513312), we get a palindrome (554828455).

The spelling of 213315143 in words is "two hundred thirteen million, three hundred fifteen thousand, one hundred forty-three".