209124059 has 2 divisors, whose sum is σ = 209124060. Its totient is φ = 209124058.

The previous prime is 209124029. The next prime is 209124079. The reversal of 209124059 is 950421902.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-209124059 is a prime.

It is not a weakly prime, because it can be changed into another prime (209124029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104562029 + 104562030.

It is an arithmetic number, because the mean of its divisors is an integer number (104562030).

Almost surely, 2^209124059 is an apocalyptic number.

209124059 is a deficient number, since it is larger than the sum of its proper divisors (1).

209124059 is an equidigital number, since it uses as much as digits as its factorization.

209124059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 209124059 is about 14461.1223285055. The cubic root of 209124059 is about 593.5646110188.

The spelling of 209124059 in words is "two hundred nine million, one hundred twenty-four thousand, fifty-nine".