212164559 has 2 divisors, whose sum is σ = 212164560. Its totient is φ = 212164558.

The previous prime is 212164529. The next prime is 212164567. The reversal of 212164559 is 955461212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212164559 - 2¹² = 212160463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212164529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106082279 + 106082280.

It is an arithmetic number, because the mean of its divisors is an integer number (106082280).

Almost surely, 2^212164559 is an apocalyptic number.

212164559 is a deficient number, since it is larger than the sum of its proper divisors (1).

212164559 is an equidigital number, since it uses as much as digits as its factorization.

212164559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 35.

The square root of 212164559 is about 14565.8696616440. The cubic root of 212164559 is about 596.4274359373.

The spelling of 212164559 in words is "two hundred twelve million, one hundred sixty-four thousand, five hundred fifty-nine".