125484780 has 48 divisors (see below), whose sum is σ = 366637824. Its totient is φ = 32007360.

The previous prime is 125484719. The next prime is 125484781. The reversal of 125484780 is 87484521.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (125484781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44086 + ... + 46845.

It is an arithmetic number, because the mean of its divisors is an integer number (7638288).

Almost surely, 2^125484780 is an apocalyptic number.

125484780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125484780 is an abundant number, since it is smaller than the sum of its proper divisors (241153044).

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

125484780 is a wasteful number, since it uses less digits than its factorization.

125484780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90966 (or 90964 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 125484780 is about 11201.9989287627. The cubic root of 125484780 is about 500.6455395321.

The spelling of 125484780 in words is "one hundred twenty-five million, four hundred eighty-four thousand, seven hundred eighty".