212339573 has 4 divisors (see below), whose sum is σ = 223515360. Its totient is φ = 201163788.

The previous prime is 212339551. The next prime is 212339581. The reversal of 212339573 is 375933212.

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 a cyclic number.

It is not a de Polignac number, because 212339573 - 2⁶ = 212339509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212339593) 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, 5587865 + ... + 5587902.

It is an arithmetic number, because the mean of its divisors is an integer number (55878840).

Almost surely, 2^212339573 is an apocalyptic number.

It is an amenable number.

212339573 is a deficient number, since it is larger than the sum of its proper divisors (11175787).

212339573 is a wasteful number, since it uses less digits than its factorization.

212339573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11175786.

The product of its digits is 34020, while the sum is 35.

The square root of 212339573 is about 14571.8760974694. The cubic root of 212339573 is about 596.5913880178.

The spelling of 212339573 in words is "two hundred twelve million, three hundred thirty-nine thousand, five hundred seventy-three".