125002489 has 2 divisors, whose sum is σ = 125002490. Its totient is φ = 125002488.

The previous prime is 125002483. The next prime is 125002511. The reversal of 125002489 is 984200521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123543225 + 1459264 = 11115^2 + 1208^2 .

It is a cyclic number.

It is not a de Polignac number, because 125002489 - 2⁵ = 125002457 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125002489.

It is not a weakly prime, because it can be changed into another prime (125002483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62501244 + 62501245.

It is an arithmetic number, because the mean of its divisors is an integer number (62501245).

Almost surely, 2^125002489 is an apocalyptic number.

It is an amenable number.

125002489 is a deficient number, since it is larger than the sum of its proper divisors (1).

125002489 is an equidigital number, since it uses as much as digits as its factorization.

125002489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 125002489 is about 11180.4511984088. The cubic root of 125002489 is about 500.0033186446.

The spelling of 125002489 in words is "one hundred twenty-five million, two thousand, four hundred eighty-nine".