211358073 has 4 divisors (see below), whose sum is σ = 281810768. Its totient is φ = 140905380.

The previous prime is 211358057. The next prime is 211358083. The reversal of 211358073 is 370853112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 211358073 - 2⁴ = 211358057 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 211358073.

It is not an unprimeable number, because it can be changed into a prime (211358083) 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, 35226343 + ... + 35226348.

It is an arithmetic number, because the mean of its divisors is an integer number (70452692).

Almost surely, 2^211358073 is an apocalyptic number.

It is an amenable number.

211358073 is a deficient number, since it is larger than the sum of its proper divisors (70452695).

211358073 is an equidigital number, since it uses as much as digits as its factorization.

211358073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70452694.

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

The square root of 211358073 is about 14538.1592025951. The cubic root of 211358073 is about 595.6707573375.

The spelling of 211358073 in words is "two hundred eleven million, three hundred fifty-eight thousand, seventy-three".