212416279 has 2 divisors, whose sum is σ = 212416280. Its totient is φ = 212416278.

The previous prime is 212416199. The next prime is 212416283. The reversal of 212416279 is 972614212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212416279 - 2¹⁷ = 212285207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212416289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106208139 + 106208140.

It is an arithmetic number, because the mean of its divisors is an integer number (106208140).

Almost surely, 2^212416279 is an apocalyptic number.

212416279 is a deficient number, since it is larger than the sum of its proper divisors (1).

212416279 is an equidigital number, since it uses as much as digits as its factorization.

212416279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 212416279 is about 14574.5078476084. The cubic root of 212416279 is about 596.6632173509.

The spelling of 212416279 in words is "two hundred twelve million, four hundred sixteen thousand, two hundred seventy-nine".