212454025417 has 2 divisors, whose sum is σ = 212454025418. Its totient is φ = 212454025416.

The previous prime is 212454025403. The next prime is 212454025439. The reversal of 212454025417 is 714520454212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197868390976 + 14585634441 = 444824^2 + 120771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212454025417 is a prime.

It is not a weakly prime, because it can be changed into another prime (212454025517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106227012708 + 106227012709.

It is an arithmetic number, because the mean of its divisors is an integer number (106227012709).

Almost surely, 2^212454025417 is an apocalyptic number.

It is an amenable number.

212454025417 is a deficient number, since it is larger than the sum of its proper divisors (1).

212454025417 is an equidigital number, since it uses as much as digits as its factorization.

212454025417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89600, while the sum is 37.

Adding to 212454025417 its reverse (714520454212), we get a palindrome (926974479629).

The spelling of 212454025417 in words is "two hundred twelve billion, four hundred fifty-four million, twenty-five thousand, four hundred seventeen".