212537713 has 4 divisors (see below), whose sum is σ = 217059840. Its totient is φ = 208015588.

The previous prime is 212537669. The next prime is 212537747. The reversal of 212537713 is 317735212.

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 212537713 - 2¹⁷ = 212406641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212537753) 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, 2260993 + ... + 2261086.

It is an arithmetic number, because the mean of its divisors is an integer number (54264960).

Almost surely, 2^212537713 is an apocalyptic number.

It is an amenable number.

212537713 is a deficient number, since it is larger than the sum of its proper divisors (4522127).

212537713 is an equidigital number, since it uses as much as digits as its factorization.

212537713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522126.

The product of its digits is 8820, while the sum is 31.

The square root of 212537713 is about 14578.6732249543. The cubic root of 212537713 is about 596.7768957042.

The spelling of 212537713 in words is "two hundred twelve million, five hundred thirty-seven thousand, seven hundred thirteen".