213825112289 has 4 divisors (see below), whose sum is σ = 216531759360. Its totient is φ = 211118465220.

The previous prime is 213825112283. The next prime is 213825112307. The reversal of 213825112289 is 982211528312.

It is a happy number.

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 213825112289 - 2⁴ = 213825112273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213825112283) 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 3 ways as a sum of consecutive naturals, for example, 1353323417 + ... + 1353323574.

It is an arithmetic number, because the mean of its divisors is an integer number (54132939840).

Almost surely, 2^213825112289 is an apocalyptic number.

It is an amenable number.

213825112289 is a deficient number, since it is larger than the sum of its proper divisors (2706647071).

213825112289 is an equidigital number, since it uses as much as digits as its factorization.

213825112289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706647070.

The product of its digits is 138240, while the sum is 44.

The spelling of 213825112289 in words is "two hundred thirteen billion, eight hundred twenty-five million, one hundred twelve thousand, two hundred eighty-nine".