124343209 has 2 divisors, whose sum is σ = 124343210. Its totient is φ = 124343208.

The previous prime is 124343189. The next prime is 124343237. The reversal of 124343209 is 902343421.

It is an a-pointer prime, because the next prime (124343237) can be obtained adding 124343209 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102515625 + 21827584 = 10125^2 + 4672^2 .

It is a cyclic number.

It is not a de Polignac number, because 124343209 - 2²⁵ = 90788777 is a prime.

It is a super-2 number, since 2×124343209² = 30922467248835362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124343249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62171604 + 62171605.

It is an arithmetic number, because the mean of its divisors is an integer number (62171605).

Almost surely, 2^124343209 is an apocalyptic number.

It is an amenable number.

124343209 is a deficient number, since it is larger than the sum of its proper divisors (1).

124343209 is an equidigital number, since it uses as much as digits as its factorization.

124343209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 124343209 is about 11150.9286160391. The cubic root of 124343209 is about 499.1227403980.

The spelling of 124343209 in words is "one hundred twenty-four million, three hundred forty-three thousand, two hundred nine".