125418539 has 2 divisors, whose sum is σ = 125418540. Its totient is φ = 125418538.

The previous prime is 125418509. The next prime is 125418547. The reversal of 125418539 is 935814521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125418539 is a prime.

It is not a weakly prime, because it can be changed into another prime (125418509) 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, 62709269 + 62709270.

It is an arithmetic number, because the mean of its divisors is an integer number (62709270).

Almost surely, 2^125418539 is an apocalyptic number.

125418539 is a deficient number, since it is larger than the sum of its proper divisors (1).

125418539 is an equidigital number, since it uses as much as digits as its factorization.

125418539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 38.

The square root of 125418539 is about 11199.0418786609. The cubic root of 125418539 is about 500.5574303119.

The spelling of 125418539 in words is "one hundred twenty-five million, four hundred eighteen thousand, five hundred thirty-nine".