125163365029 has 2 divisors, whose sum is σ = 125163365030. Its totient is φ = 125163365028.

The previous prime is 125163365027. The next prime is 125163365039. The reversal of 125163365029 is 920563361521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110310336900 + 14853028129 = 332130^2 + 121873^2 .

It is a cyclic number.

It is not a de Polignac number, because 125163365029 - 2¹ = 125163365027 is a prime.

Together with 125163365027, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125163365021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62581682514 + 62581682515.

It is an arithmetic number, because the mean of its divisors is an integer number (62581682515).

Almost surely, 2^125163365029 is an apocalyptic number.

It is an amenable number.

125163365029 is a deficient number, since it is larger than the sum of its proper divisors (1).

125163365029 is an equidigital number, since it uses as much as digits as its factorization.

125163365029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 125163365029 in words is "one hundred twenty-five billion, one hundred sixty-three million, three hundred sixty-five thousand, twenty-nine".