212447449 has 2 divisors, whose sum is σ = 212447450. Its totient is φ = 212447448.

The previous prime is 212447441. The next prime is 212447467. The reversal of 212447449 is 944744212.

It is a happy number.

212447449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161467849 + 50979600 = 12707^2 + 7140^2 .

It is a cyclic number.

It is not a de Polignac number, because 212447449 - 2³ = 212447441 is a prime.

It is not a weakly prime, because it can be changed into another prime (212447441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106223724 + 106223725.

It is an arithmetic number, because the mean of its divisors is an integer number (106223725).

Almost surely, 2^212447449 is an apocalyptic number.

It is an amenable number.

212447449 is a deficient number, since it is larger than the sum of its proper divisors (1).

212447449 is an equidigital number, since it uses as much as digits as its factorization.

212447449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 37.

The square root of 212447449 is about 14575.5771412318. The cubic root of 212447449 is about 596.6924007433.

The spelling of 212447449 in words is "two hundred twelve million, four hundred forty-seven thousand, four hundred forty-nine".