213415343 has 2 divisors, whose sum is σ = 213415344. Its totient is φ = 213415342.

The previous prime is 213415339. The next prime is 213415357. The reversal of 213415343 is 343514312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213415343 - 2² = 213415339 is a prime.

It is a super-2 number, since 2×213415343² = 91092217255615298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213405343) 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, 106707671 + 106707672.

It is an arithmetic number, because the mean of its divisors is an integer number (106707672).

Almost surely, 2^213415343 is an apocalyptic number.

213415343 is a deficient number, since it is larger than the sum of its proper divisors (1).

213415343 is an equidigital number, since it uses as much as digits as its factorization.

213415343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 213415343 is about 14608.7420060729. The cubic root of 213415343 is about 597.5971894213.

Adding to 213415343 its reverse (343514312), we get a palindrome (556929655).

The spelling of 213415343 in words is "two hundred thirteen million, four hundred fifteen thousand, three hundred forty-three".