212363189 has 2 divisors, whose sum is σ = 212363190. Its totient is φ = 212363188.

The previous prime is 212363101. The next prime is 212363251. The reversal of 212363189 is 981363212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124322500 + 88040689 = 11150^2 + 9383^2 .

It is a cyclic number.

It is not a de Polignac number, because 212363189 - 2¹⁶ = 212297653 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212363089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106181594 + 106181595.

It is an arithmetic number, because the mean of its divisors is an integer number (106181595).

Almost surely, 2^212363189 is an apocalyptic number.

It is an amenable number.

212363189 is a deficient number, since it is larger than the sum of its proper divisors (1).

212363189 is an equidigital number, since it uses as much as digits as its factorization.

212363189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 212363189 is about 14572.6864029938. The cubic root of 212363189 is about 596.6135044479.

The spelling of 212363189 in words is "two hundred twelve million, three hundred sixty-three thousand, one hundred eighty-nine".