211545064 has 16 divisors (see below), whose sum is σ = 398865600. Its totient is φ = 105180912.

The previous prime is 211545029. The next prime is 211545083. The reversal of 211545064 is 460545112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72432 + ... + 75295.

It is an arithmetic number, because the mean of its divisors is an integer number (24929100).

Almost surely, 2^211545064 is an apocalyptic number.

It is an amenable number.

211545064 is a deficient number, since it is larger than the sum of its proper divisors (187320536).

211545064 is a wasteful number, since it uses less digits than its factorization.

211545064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147912 (or 147908 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 211545064 is about 14544.5888219640. The cubic root of 211545064 is about 595.8463712254.

The spelling of 211545064 in words is "two hundred eleven million, five hundred forty-five thousand, sixty-four".