125318029 has 2 divisors, whose sum is σ = 125318030. Its totient is φ = 125318028.

The previous prime is 125317993. The next prime is 125318047. The reversal of 125318029 is 920813521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65642404 + 59675625 = 8102^2 + 7725^2 .

It is an emirp because it is prime and its reverse (920813521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125318029 - 2¹³ = 125309837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125318069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62659014 + 62659015.

It is an arithmetic number, because the mean of its divisors is an integer number (62659015).

Almost surely, 2^125318029 is an apocalyptic number.

It is an amenable number.

125318029 is a deficient number, since it is larger than the sum of its proper divisors (1).

125318029 is an equidigital number, since it uses as much as digits as its factorization.

125318029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 125318029 is about 11194.5535417899. The cubic root of 125318029 is about 500.4236795565.

The spelling of 125318029 in words is "one hundred twenty-five million, three hundred eighteen thousand, twenty-nine".