212173333 has 4 divisors (see below), whose sum is σ = 213444000. Its totient is φ = 210902668.

The previous prime is 212173279. The next prime is 212173337. The reversal of 212173333 is 333371212.

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 a de Polignac number, because none of the positive numbers 2^k-212173333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212173298 and 212173307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212173337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635083 + ... + 635416.

It is an arithmetic number, because the mean of its divisors is an integer number (53361000).

Almost surely, 2^212173333 is an apocalyptic number.

It is an amenable number.

212173333 is a deficient number, since it is larger than the sum of its proper divisors (1270667).

212173333 is a wasteful number, since it uses less digits than its factorization.

212173333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270666.

The product of its digits is 2268, while the sum is 25.

The square root of 212173333 is about 14566.1708420573. The cubic root of 212173333 is about 596.4356575149.

The spelling of 212173333 in words is "two hundred twelve million, one hundred seventy-three thousand, three hundred thirty-three".