211324369 has 3 divisors (see below), whose sum is σ = 211338907. Its totient is φ = 211309832.

The previous prime is 211324367. The next prime is 211324381. The reversal of 211324369 is 963423112.

The square root of 211324369 is 14537.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 50339025 + 160985344 = 7095^2 + 12688^2 .

It is not a de Polignac number, because 211324369 - 2¹ = 211324367 is a prime.

It is a super-2 number, since 2×211324369² = 89315977866496322, which contains 22 as substring.

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 211324369.

It is not an unprimeable number, because it can be changed into a prime (211324367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7269 + ... + 21805.

Almost surely, 2^211324369 is an apocalyptic number.

211324369 is the 14537-th square number.

211324369 is the 7269-th centered octagonal number.

It is an amenable number.

211324369 is a deficient number, since it is larger than the sum of its proper divisors (14538).

211324369 is an frugal number, since it uses more digits than its factorization.

211324369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29074 (or 14537 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The cubic root of 211324369 is about 595.6390929773.

The spelling of 211324369 in words is "two hundred eleven million, three hundred twenty-four thousand, three hundred sixty-nine".