124040029 has 2 divisors, whose sum is σ = 124040030. Its totient is φ = 124040028.

The previous prime is 124040027. The next prime is 124040051. The reversal of 124040029 is 920040421.

It is an a-pointer prime, because the next prime (124040051) can be obtained adding 124040029 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108056025 + 15984004 = 10395^2 + 3998^2 .

It is an emirp because it is prime and its reverse (920040421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124040029 - 2¹ = 124040027 is a prime.

Together with 124040027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 124039991 and 124040009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124040027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62020014 + 62020015.

It is an arithmetic number, because the mean of its divisors is an integer number (62020015).

Almost surely, 2^124040029 is an apocalyptic number.

It is an amenable number.

124040029 is a deficient number, since it is larger than the sum of its proper divisors (1).

124040029 is an equidigital number, since it uses as much as digits as its factorization.

124040029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 124040029 is about 11137.3259357891. The cubic root of 124040029 is about 498.7167480129.

The spelling of 124040029 in words is "one hundred twenty-four million, forty thousand, twenty-nine".