213144847247 has 12 divisors (see below), whose sum is σ = 228618592176. Its totient is φ = 198659247360.

The previous prime is 213144847241. The next prime is 213144847277. The reversal of 213144847247 is 742748441312.

It is not a de Polignac number, because 213144847247 - 2⁴ = 213144847231 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 (213144847241) 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 11 ways as a sum of consecutive naturals, for example, 3550454 + ... + 3609987.

It is an arithmetic number, because the mean of its divisors is an integer number (19051549348).

Almost surely, 2^213144847247 is an apocalyptic number.

213144847247 is a deficient number, since it is larger than the sum of its proper divisors (15473744929).

213144847247 is a wasteful number, since it uses less digits than its factorization.

213144847247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7160578 (or 7160561 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 47.

The spelling of 213144847247 in words is "two hundred thirteen billion, one hundred forty-four million, eight hundred forty-seven thousand, two hundred forty-seven".