212424097 has 2 divisors, whose sum is σ = 212424098. Its totient is φ = 212424096.

The previous prime is 212424089. The next prime is 212424151. The reversal of 212424097 is 790424212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196868961 + 15555136 = 14031^2 + 3944^2 .

It is a cyclic number.

It is not a de Polignac number, because 212424097 - 2³ = 212424089 is a prime.

It is equal to p_11727931 and since 212424097 and 11727931 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (213424097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106212048 + 106212049.

It is an arithmetic number, because the mean of its divisors is an integer number (106212049).

Almost surely, 2^212424097 is an apocalyptic number.

It is an amenable number.

212424097 is a deficient number, since it is larger than the sum of its proper divisors (1).

212424097 is an equidigital number, since it uses as much as digits as its factorization.

212424097 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 212424097 is about 14574.7760531680. The cubic root of 212424097 is about 596.6705373419.

The spelling of 212424097 in words is "two hundred twelve million, four hundred twenty-four thousand, ninety-seven".