213701071 has 2 divisors, whose sum is σ = 213701072. Its totient is φ = 213701070.

The previous prime is 213701053. The next prime is 213701093. The reversal of 213701071 is 170107312.

It is an a-pointer prime, because the next prime (213701093) can be obtained adding 213701071 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213701071 - 2⁵ = 213701039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213701041) 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, 106850535 + 106850536.

It is an arithmetic number, because the mean of its divisors is an integer number (106850536).

Almost surely, 2^213701071 is an apocalyptic number.

213701071 is a deficient number, since it is larger than the sum of its proper divisors (1).

213701071 is an equidigital number, since it uses as much as digits as its factorization.

213701071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 213701071 is about 14618.5180849497. The cubic root of 213701071 is about 597.8637652320.

Adding to 213701071 its reverse (170107312), we get a palindrome (383808383).

The spelling of 213701071 in words is "two hundred thirteen million, seven hundred one thousand, seventy-one".