125445020 has 24 divisors (see below), whose sum is σ = 264345984. Its totient is φ = 50004416.

The previous prime is 125445017. The next prime is 125445043. The reversal of 125445020 is 20544521.

It is a happy number.

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, 4844 + ... + 16563.

It is an arithmetic number, because the mean of its divisors is an integer number (11014416).

Almost surely, 2^125445020 is an apocalyptic number.

125445020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125445020 is an abundant number, since it is smaller than the sum of its proper divisors (138900964).

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

125445020 is a wasteful number, since it uses less digits than its factorization.

125445020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21709 (or 21707 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 125445020 is about 11200.2241049008. The cubic root of 125445020 is about 500.5926572372.

Adding to 125445020 its reverse (20544521), we get a palindrome (145989541).

The spelling of 125445020 in words is "one hundred twenty-five million, four hundred forty-five thousand, twenty".