212971079 has 2 divisors, whose sum is σ = 212971080. Its totient is φ = 212971078.

The previous prime is 212971063. The next prime is 212971081. The reversal of 212971079 is 970179212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212971079 - 2⁴ = 212971063 is a prime.

Together with 212971081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212971279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106485539 + 106485540.

It is an arithmetic number, because the mean of its divisors is an integer number (106485540).

Almost surely, 2^212971079 is an apocalyptic number.

212971079 is a deficient number, since it is larger than the sum of its proper divisors (1).

212971079 is an equidigital number, since it uses as much as digits as its factorization.

212971079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 212971079 is about 14593.5286685572. The cubic root of 212971079 is about 597.1822311988.

The spelling of 212971079 in words is "two hundred twelve million, nine hundred seventy-one thousand, seventy-nine".