124313209 has 2 divisors, whose sum is σ = 124313210. Its totient is φ = 124313208.

The previous prime is 124313179. The next prime is 124313243. The reversal of 124313209 is 902313421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124255609 + 57600 = 11147^2 + 240^2 .

It is a cyclic number.

It is not a de Polignac number, because 124313209 - 2¹⁷ = 124182137 is a prime.

It is not a weakly prime, because it can be changed into another prime (124313269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62156604 + 62156605.

It is an arithmetic number, because the mean of its divisors is an integer number (62156605).

Almost surely, 2^124313209 is an apocalyptic number.

It is an amenable number.

124313209 is a deficient number, since it is larger than the sum of its proper divisors (1).

124313209 is an equidigital number, since it uses as much as digits as its factorization.

124313209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 124313209 is about 11149.5833554443. The cubic root of 124313209 is about 499.0825964376.

The spelling of 124313209 in words is "one hundred twenty-four million, three hundred thirteen thousand, two hundred nine".