212724049 has 2 divisors, whose sum is σ = 212724050. Its totient is φ = 212724048.

The previous prime is 212724013. The next prime is 212724067. The reversal of 212724049 is 940427212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175085824 + 37638225 = 13232^2 + 6135^2 .

It is a cyclic number.

It is not a de Polignac number, because 212724049 - 2⁷ = 212723921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212724049.

It is not a weakly prime, because it can be changed into another prime (212724649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106362024 + 106362025.

It is an arithmetic number, because the mean of its divisors is an integer number (106362025).

Almost surely, 2^212724049 is an apocalyptic number.

It is an amenable number.

212724049 is a deficient number, since it is larger than the sum of its proper divisors (1).

212724049 is an equidigital number, since it uses as much as digits as its factorization.

212724049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 212724049 is about 14585.0625298625. The cubic root of 212724049 is about 596.9512467821.

The spelling of 212724049 in words is "two hundred twelve million, seven hundred twenty-four thousand, forty-nine".