211318745 has 16 divisors (see below), whose sum is σ = 277119360. Its totient is φ = 153417600.

The previous prime is 211318717. The next prime is 211318753. The reversal of 211318745 is 547813112.

It is not a de Polignac number, because 211318745 - 2²⁶ = 144209881 is a prime.

It is a super-2 number, since 2×211318745² = 89311223976750050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31661 + ... + 37749.

It is an arithmetic number, because the mean of its divisors is an integer number (17319960).

Almost surely, 2^211318745 is an apocalyptic number.

It is an amenable number.

211318745 is a deficient number, since it is larger than the sum of its proper divisors (65800615).

211318745 is a wasteful number, since it uses less digits than its factorization.

211318745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6736.

The product of its digits is 6720, while the sum is 32.

The square root of 211318745 is about 14536.8065612775. The cubic root of 211318745 is about 595.6338089929.

The spelling of 211318745 in words is "two hundred eleven million, three hundred eighteen thousand, seven hundred forty-five".