125429447 has 20 divisors (see below), whose sum is σ = 148810200. Its totient is φ = 105095760.

The previous prime is 125429443. The next prime is 125429449. The reversal of 125429447 is 744924521.

It is not a de Polignac number, because 125429447 - 2² = 125429443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125429447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125429443) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 190004 + ... + 190662.

It is an arithmetic number, because the mean of its divisors is an integer number (7440510).

Almost surely, 2^125429447 is an apocalyptic number.

125429447 is a deficient number, since it is larger than the sum of its proper divisors (23380753).

125429447 is an frugal number, since it uses more digits than its factorization.

125429447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 683 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 125429447 is about 11199.5288740197. The cubic root of 125429447 is about 500.5719415163.

The spelling of 125429447 in words is "one hundred twenty-five million, four hundred twenty-nine thousand, four hundred forty-seven".