211053439 has 8 divisors (see below), whose sum is σ = 219729680. Its totient is φ = 202533696.

The previous prime is 211053433. The next prime is 211053449. The reversal of 211053439 is 934350112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211053439 - 2¹⁷ = 210922367 is a prime.

It is a super-2 number, since 2×211053439² = 89087108227453442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211053433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36369 + ... + 41770.

It is an arithmetic number, because the mean of its divisors is an integer number (27466210).

Almost surely, 2^211053439 is an apocalyptic number.

211053439 is a deficient number, since it is larger than the sum of its proper divisors (8676241).

211053439 is an equidigital number, since it uses as much as digits as its factorization.

211053439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78249.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 211053439 is about 14527.6783761205. The cubic root of 211053439 is about 595.3844362553.

The spelling of 211053439 in words is "two hundred eleven million, fifty-three thousand, four hundred thirty-nine".