212164027 has 2 divisors, whose sum is σ = 212164028. Its totient is φ = 212164026.

The previous prime is 212163989. The next prime is 212164033. The reversal of 212164027 is 720461212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212164027 - 2²⁷ = 77946299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212163992 and 212164010.

It is not a weakly prime, because it can be changed into another prime (212164727) 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, 106082013 + 106082014.

It is an arithmetic number, because the mean of its divisors is an integer number (106082014).

Almost surely, 2^212164027 is an apocalyptic number.

212164027 is a deficient number, since it is larger than the sum of its proper divisors (1).

212164027 is an equidigital number, since it uses as much as digits as its factorization.

212164027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 212164027 is about 14565.8513997638. The cubic root of 212164027 is about 596.4269374254.

The spelling of 212164027 in words is "two hundred twelve million, one hundred sixty-four thousand, twenty-seven".