211013144 has 16 divisors (see below), whose sum is σ = 395835120. Its totient is φ = 105457120.

The previous prime is 211013119. The next prime is 211013147. The reversal of 211013144 is 441310112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211013147) 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 3 ways as a sum of consecutive naturals, for example, 17117 + ... + 26739.

It is an arithmetic number, because the mean of its divisors is an integer number (24739695).

Almost surely, 2^211013144 is an apocalyptic number.

It is an amenable number.

211013144 is a deficient number, since it is larger than the sum of its proper divisors (184821976).

211013144 is a wasteful number, since it uses less digits than its factorization.

211013144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12370 (or 12366 counting only the distinct ones).

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

The square root of 211013144 is about 14526.2914744266. The cubic root of 211013144 is about 595.3465429411.

Adding to 211013144 its reverse (441310112), we get a palindrome (652323256).

The spelling of 211013144 in words is "two hundred eleven million, thirteen thousand, one hundred forty-four".