212564613 has 8 divisors (see below), whose sum is σ = 292562176. Its totient is φ = 137138400.

The previous prime is 212564587. The next prime is 212564633. The reversal of 212564613 is 316465212.

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

It is not a de Polignac number, because 212564613 - 2²¹ = 210467461 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 (212564633) 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, 1142728 + ... + 1142913.

It is an arithmetic number, because the mean of its divisors is an integer number (36570272).

Almost surely, 2^212564613 is an apocalyptic number.

It is an amenable number.

212564613 is a deficient number, since it is larger than the sum of its proper divisors (79997563).

212564613 is a wasteful number, since it uses less digits than its factorization.

212564613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285675.

The product of its digits is 8640, while the sum is 30.

The square root of 212564613 is about 14579.5957762895. The cubic root of 212564613 is about 596.8020718185.

The spelling of 212564613 in words is "two hundred twelve million, five hundred sixty-four thousand, six hundred thirteen".