212454025439 has 2 divisors, whose sum is σ = 212454025440. Its totient is φ = 212454025438.

The previous prime is 212454025417. The next prime is 212454025453. The reversal of 212454025439 is 934520454212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212454025439 - 2³⁶ = 143734548703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212454025396 and 212454025405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212454025939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106227012719 + 106227012720.

It is an arithmetic number, because the mean of its divisors is an integer number (106227012720).

Almost surely, 2^212454025439 is an apocalyptic number.

212454025439 is a deficient number, since it is larger than the sum of its proper divisors (1).

212454025439 is an equidigital number, since it uses as much as digits as its factorization.

212454025439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 212454025439 in words is "two hundred twelve billion, four hundred fifty-four million, twenty-five thousand, four hundred thirty-nine".