213127 has 4 divisors (see below), whose sum is σ = 216376. Its totient is φ = 209880.

The previous prime is 213119. The next prime is 213131. The reversal of 213127 is 721312.

It is a happy number.

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 213127 - 2³ = 213119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1524 + ... + 1657.

It is an arithmetic number, because the mean of its divisors is an integer number (54094).

2²¹³¹²⁷ is an apocalyptic number.

213127 is a deficient number, since it is larger than the sum of its proper divisors (3249).

213127 is an equidigital number, since it uses as much as digits as its factorization.

213127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248.

The product of its digits is 84, while the sum is 16.

The square root of 213127 is about 461.6567989318. The cubic root of 213127 is about 59.7327932573.

Adding to 213127 its reverse (721312), we get a palindrome (934439).

The spelling of 213127 in words is "two hundred thirteen thousand, one hundred twenty-seven".