211315 has 8 divisors (see below), whose sum is σ = 273168. Its totient is φ = 156000.

The previous prime is 211313. The next prime is 211319. The reversal of 211315 is 513112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211315 - 2¹ = 211313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211295 and 211304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211313) 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 7 ways as a sum of consecutive naturals, for example, 1561 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (34146).

2²¹¹³¹⁵ is an apocalyptic number.

211315 is a deficient number, since it is larger than the sum of its proper divisors (61853).

211315 is a wasteful number, since it uses less digits than its factorization.

211315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269.

The product of its digits is 30, while the sum is 13.

The square root of 211315 is about 459.6901130109. The cubic root of 211315 is about 59.5630290356.

Adding to 211315 its reverse (513112), we get a palindrome (724427).

The spelling of 211315 in words is "two hundred eleven thousand, three hundred fifteen".