213841871 has 2 divisors, whose sum is σ = 213841872. Its totient is φ = 213841870.

The previous prime is 213841841. The next prime is 213841921. The reversal of 213841871 is 178148312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213841871 - 2²⁶ = 146733007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213841811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106920935 + 106920936.

It is an arithmetic number, because the mean of its divisors is an integer number (106920936).

Almost surely, 2^213841871 is an apocalyptic number.

213841871 is a deficient number, since it is larger than the sum of its proper divisors (1).

213841871 is an equidigital number, since it uses as much as digits as its factorization.

213841871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 35.

The square root of 213841871 is about 14623.3331015880. Note that the first 3 decimals coincide. The cubic root of 213841871 is about 597.9950400964.

The spelling of 213841871 in words is "two hundred thirteen million, eight hundred forty-one thousand, eight hundred seventy-one".