213459671 has 2 divisors, whose sum is σ = 213459672. Its totient is φ = 213459670.

The previous prime is 213459643. The next prime is 213459709. The reversal of 213459671 is 176954312.

It is an a-pointer prime, because the next prime (213459709) can be obtained adding 213459671 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213459671 - 2⁶ = 213459607 is a prime.

It is a super-2 number, since 2×213459671² = 91130062286856482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213459601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106729835 + 106729836.

It is an arithmetic number, because the mean of its divisors is an integer number (106729836).

Almost surely, 2^213459671 is an apocalyptic number.

213459671 is a deficient number, since it is larger than the sum of its proper divisors (1).

213459671 is an equidigital number, since it uses as much as digits as its factorization.

213459671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 213459671 is about 14610.2591010564. The cubic root of 213459671 is about 597.6385617269.

The spelling of 213459671 in words is "two hundred thirteen million, four hundred fifty-nine thousand, six hundred seventy-one".