124991029 has 2 divisors, whose sum is σ = 124991030. Its totient is φ = 124991028.

The previous prime is 124991011. The next prime is 124991047. The reversal of 124991029 is 920199421.

It is a balanced prime because it is at equal distance from previous prime (124991011) and next prime (124991047).

It can be written as a sum of positive squares in only one way, i.e., 115068529 + 9922500 = 10727^2 + 3150^2 .

It is an emirp because it is prime and its reverse (920199421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124991029 - 2¹⁷ = 124859957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124991129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62495514 + 62495515.

It is an arithmetic number, because the mean of its divisors is an integer number (62495515).

Almost surely, 2^124991029 is an apocalyptic number.

It is an amenable number.

124991029 is a deficient number, since it is larger than the sum of its proper divisors (1).

124991029 is an equidigital number, since it uses as much as digits as its factorization.

124991029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 124991029 is about 11179.9386849839. The cubic root of 124991029 is about 499.9880383805.

The spelling of 124991029 in words is "one hundred twenty-four million, nine hundred ninety-one thousand, twenty-nine".