125055239 has 2 divisors, whose sum is σ = 125055240. Its totient is φ = 125055238.

The previous prime is 125055233. The next prime is 125055311. The reversal of 125055239 is 932550521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125055239 - 2¹⁶ = 124989703 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 (125055233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62527619 + 62527620.

It is an arithmetic number, because the mean of its divisors is an integer number (62527620).

Almost surely, 2^125055239 is an apocalyptic number.

125055239 is a deficient number, since it is larger than the sum of its proper divisors (1).

125055239 is an equidigital number, since it uses as much as digits as its factorization.

125055239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 125055239 is about 11182.8099778186. The cubic root of 125055239 is about 500.0736411534.

The spelling of 125055239 in words is "one hundred twenty-five million, fifty-five thousand, two hundred thirty-nine".