212504546413 has 2 divisors, whose sum is σ = 212504546414. Its totient is φ = 212504546412.

The previous prime is 212504546399. The next prime is 212504546431. The reversal of 212504546413 is 314645405212.

Together with next prime (212504546431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190478127844 + 22026418569 = 436438^2 + 148413^2 .

It is a cyclic number.

It is not a de Polignac number, because 212504546413 - 2⁹ = 212504545901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212504046413) 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 as a sum of consecutive naturals, namely, 106252273206 + 106252273207.

It is an arithmetic number, because the mean of its divisors is an integer number (106252273207).

Almost surely, 2^212504546413 is an apocalyptic number.

It is an amenable number.

212504546413 is a deficient number, since it is larger than the sum of its proper divisors (1).

212504546413 is an equidigital number, since it uses as much as digits as its factorization.

212504546413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 212504546413 in words is "two hundred twelve billion, five hundred four million, five hundred forty-six thousand, four hundred thirteen".