211853073 has 8 divisors (see below), whose sum is σ = 283810336. Its totient is φ = 140565600.

The previous prime is 211853071. The next prime is 211853077. The reversal of 211853073 is 370358112.

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

It is not a de Polignac number, because 211853073 - 2¹ = 211853071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211853073.

It is not an unprimeable number, because it can be changed into a prime (211853071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166708 + ... + 167973.

It is an arithmetic number, because the mean of its divisors is an integer number (35476292).

Almost surely, 2^211853073 is an apocalyptic number.

It is an amenable number.

211853073 is a deficient number, since it is larger than the sum of its proper divisors (71957263).

211853073 is a wasteful number, since it uses less digits than its factorization.

211853073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334895.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 211853073 is about 14555.1734101659. The cubic root of 211853073 is about 596.1354145185.

The spelling of 211853073 in words is "two hundred eleven million, eight hundred fifty-three thousand, seventy-three".