211411045 has 8 divisors (see below), whose sum is σ = 256544280. Its totient is φ = 167228160.

The previous prime is 211411003. The next prime is 211411049. The reversal of 211411045 is 540114112.

It can be written as a sum of positive squares in 4 ways, for example, as 35928036 + 175483009 = 5994^2 + 13247^2 .

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

It is not a de Polignac number, because 211411045 - 2⁹ = 211410533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211411049) 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 7 ways as a sum of consecutive naturals, for example, 237096 + ... + 237985.

It is an arithmetic number, because the mean of its divisors is an integer number (32068035).

Almost surely, 2^211411045 is an apocalyptic number.

It is an amenable number.

211411045 is a deficient number, since it is larger than the sum of its proper divisors (45133235).

211411045 is an equidigital number, since it uses as much as digits as its factorization.

211411045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475175.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 211411045 is about 14539.9809147055. The cubic root of 211411045 is about 595.7205168683.

Adding to 211411045 its reverse (540114112), we get a palindrome (751525157).

The spelling of 211411045 in words is "two hundred eleven million, four hundred eleven thousand, forty-five".