125389447 has 2 divisors, whose sum is σ = 125389448. Its totient is φ = 125389446.

The previous prime is 125389441. The next prime is 125389457. The reversal of 125389447 is 744983521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125389447 - 2¹⁹ = 124865159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125389441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62694723 + 62694724.

It is an arithmetic number, because the mean of its divisors is an integer number (62694724).

Almost surely, 2^125389447 is an apocalyptic number.

125389447 is a deficient number, since it is larger than the sum of its proper divisors (1).

125389447 is an equidigital number, since it uses as much as digits as its factorization.

125389447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The square root of 125389447 is about 11197.7429422183. The cubic root of 125389447 is about 500.5187243307.

The spelling of 125389447 in words is "one hundred twenty-five million, three hundred eighty-nine thousand, four hundred forty-seven".