211538675 has 12 divisors (see below), whose sum is σ = 263212320. Its totient is φ = 168647520.

The previous prime is 211538617. The next prime is 211538687. The reversal of 211538675 is 576835112.

It is not a de Polignac number, because 211538675 - 2⁶ = 211538611 is a prime.

It is a super-2 number, since 2×211538675² = 89497222041511250, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 7115 + ... + 21764.

It is an arithmetic number, because the mean of its divisors is an integer number (21934360).

Almost surely, 2^211538675 is an apocalyptic number.

211538675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

211538675 is a deficient number, since it is larger than the sum of its proper divisors (51673645).

211538675 is a wasteful number, since it uses less digits than its factorization.

211538675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29182 (or 29177 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 211538675 is about 14544.3691853583. The cubic root of 211538675 is about 595.8403726599.

The spelling of 211538675 in words is "two hundred eleven million, five hundred thirty-eight thousand, six hundred seventy-five".