124241309 has 2 divisors, whose sum is σ = 124241310. Its totient is φ = 124241308.

The previous prime is 124241297. The next prime is 124241333. The reversal of 124241309 is 903142421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84235684 + 40005625 = 9178^2 + 6325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124241309 is a prime.

It is a super-3 number, since 3×124241309³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124241339) 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, 62120654 + 62120655.

It is an arithmetic number, because the mean of its divisors is an integer number (62120655).

Almost surely, 2^124241309 is an apocalyptic number.

It is an amenable number.

124241309 is a deficient number, since it is larger than the sum of its proper divisors (1).

124241309 is an equidigital number, since it uses as much as digits as its factorization.

124241309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 124241309 is about 11146.3585533572. The cubic root of 124241309 is about 498.9863584503.

The spelling of 124241309 in words is "one hundred twenty-four million, two hundred forty-one thousand, three hundred nine".