211132142 has 32 divisors (see below), whose sum is σ = 364425600. Its totient is φ = 90924768.

The previous prime is 211132139. The next prime is 211132153. The reversal of 211132142 is 241231112.

It is a self number, because there is not a number n which added to its sum of digits gives 211132142.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 29909 + ... + 36287.

It is an arithmetic number, because the mean of its divisors is an integer number (11388300).

Almost surely, 2^211132142 is an apocalyptic number.

211132142 is a deficient number, since it is larger than the sum of its proper divisors (153293458).

211132142 is a wasteful number, since it uses less digits than its factorization.

211132142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480.

The product of its digits is 96, while the sum is 17.

The square root of 211132142 is about 14530.3868496334. The cubic root of 211132142 is about 595.4584344460.

Adding to 211132142 its reverse (241231112), we get a palindrome (452363254).

The spelling of 211132142 in words is "two hundred eleven million, one hundred thirty-two thousand, one hundred forty-two".