213914671 has 4 divisors (see below), whose sum is σ = 219132144. Its totient is φ = 208697200.

The previous prime is 213914647. The next prime is 213914683. The reversal of 213914671 is 176419312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213914671 - 2¹¹ = 213912623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213914611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2608675 + ... + 2608756.

It is an arithmetic number, because the mean of its divisors is an integer number (54783036).

Almost surely, 2^213914671 is an apocalyptic number.

213914671 is a deficient number, since it is larger than the sum of its proper divisors (5217473).

213914671 is an equidigital number, since it uses as much as digits as its factorization.

213914671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217472.

The product of its digits is 9072, while the sum is 34.

The square root of 213914671 is about 14625.8220623663. The cubic root of 213914671 is about 598.0628925698.

It can be divided in two parts, 21391 and 4671, that added together give a palindrome (26062).

The spelling of 213914671 in words is "two hundred thirteen million, nine hundred fourteen thousand, six hundred seventy-one".