213615343 has 2 divisors, whose sum is σ = 213615344. Its totient is φ = 213615342.

The previous prime is 213615293. The next prime is 213615349. The reversal of 213615343 is 343516312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213615343 - 2²¹ = 211518191 is a prime.

It is equal to p_11790037 and since 213615343 and 11790037 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213615349) 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, 106807671 + 106807672.

It is an arithmetic number, because the mean of its divisors is an integer number (106807672).

Almost surely, 2^213615343 is an apocalyptic number.

213615343 is a deficient number, since it is larger than the sum of its proper divisors (1).

213615343 is an equidigital number, since it uses as much as digits as its factorization.

213615343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 213615343 is about 14615.5856194680. The cubic root of 213615343 is about 597.7838084965.

The spelling of 213615343 in words is "two hundred thirteen million, six hundred fifteen thousand, three hundred forty-three".