124207129 has 2 divisors, whose sum is σ = 124207130. Its totient is φ = 124207128.

The previous prime is 124207033. The next prime is 124207133. The reversal of 124207129 is 921702421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117679104 + 6528025 = 10848^2 + 2555^2 .

It is a cyclic number.

It is not a de Polignac number, because 124207129 - 2¹³ = 124198937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 124207097 and 124207106.

It is not a weakly prime, because it can be changed into another prime (124207189) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62103564 + 62103565.

It is an arithmetic number, because the mean of its divisors is an integer number (62103565).

Almost surely, 2^124207129 is an apocalyptic number.

It is an amenable number.

124207129 is a deficient number, since it is larger than the sum of its proper divisors (1).

124207129 is an equidigital number, since it uses as much as digits as its factorization.

124207129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 124207129 is about 11144.8252117294. The cubic root of 124207129 is about 498.9405955765.

The spelling of 124207129 in words is "one hundred twenty-four million, two hundred seven thousand, one hundred twenty-nine".