212564933 has 8 divisors (see below), whose sum is σ = 245160960. Its totient is φ = 180526320.

The previous prime is 212564929. The next prime is 212564939. The reversal of 212564933 is 339465212.

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 212564933 - 2² = 212564929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212564893 and 212564902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212564939) 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, 138533 + ... + 140058.

It is an arithmetic number, because the mean of its divisors is an integer number (30645120).

Almost surely, 2^212564933 is an apocalyptic number.

It is an amenable number.

212564933 is a deficient number, since it is larger than the sum of its proper divisors (32596027).

212564933 is a wasteful number, since it uses less digits than its factorization.

212564933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278707.

The product of its digits is 38880, while the sum is 35.

The square root of 212564933 is about 14579.6067505266. The cubic root of 212564933 is about 596.8023712986.

The spelling of 212564933 in words is "two hundred twelve million, five hundred sixty-four thousand, nine hundred thirty-three".