125200020 has 48 divisors (see below), whose sum is σ = 382431168. Its totient is φ = 30351360.

The previous prime is 125200013. The next prime is 125200021. The reversal of 125200020 is 20002521.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 125199969 and 125200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125200021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94189 + ... + 95508.

It is an arithmetic number, because the mean of its divisors is an integer number (7967316).

Almost surely, 2^125200020 is an apocalyptic number.

125200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125200020 is an abundant number, since it is smaller than the sum of its proper divisors (257231148).

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

125200020 is a wasteful number, since it uses less digits than its factorization.

125200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189720 (or 189718 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 125200020 is about 11189.2814782720. The cubic root of 125200020 is about 500.2665512090.

Adding to 125200020 its reverse (20002521), we get a palindrome (145202541).

The spelling of 125200020 in words is "one hundred twenty-five million, two hundred thousand, twenty".