125506180 has 12 divisors (see below), whose sum is σ = 263563020. Its totient is φ = 50202464.

The previous prime is 125506177. The next prime is 125506181. The reversal of 125506180 is 81605521.

It can be written as a sum of positive squares in 2 ways, for example, as 20484676 + 105021504 = 4526^2 + 10248^2 .

It is not an unprimeable number, because it can be changed into a prime (125506181) 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 in 3 ways as a sum of consecutive naturals, for example, 3137635 + ... + 3137674.

It is an arithmetic number, because the mean of its divisors is an integer number (21963585).

Almost surely, 2^125506180 is an apocalyptic number.

125506180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125506180 is an abundant number, since it is smaller than the sum of its proper divisors (138056840).

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

125506180 is a wasteful number, since it uses less digits than its factorization.

125506180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6275318 (or 6275316 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 125506180 is about 11202.9540747073. The cubic root of 125506180 is about 500.6739977126.

The spelling of 125506180 in words is "one hundred twenty-five million, five hundred six thousand, one hundred eighty".