125449780 has 24 divisors (see below), whose sum is σ = 277310880. Its totient is φ = 47538720.

The previous prime is 125449771. The next prime is 125449801. The reversal of 125449780 is 87944521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164686 + ... + 165445.

It is an arithmetic number, because the mean of its divisors is an integer number (11554620).

Almost surely, 2^125449780 is an apocalyptic number.

125449780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125449780 is an abundant number, since it is smaller than the sum of its proper divisors (151861100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125449780 is a wasteful number, since it uses less digits than its factorization.

125449780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330159 (or 330157 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 125449780 is about 11200.4365986331. The cubic root of 125449780 is about 500.5989888049.

The spelling of 125449780 in words is "one hundred twenty-five million, four hundred forty-nine thousand, seven hundred eighty".