125510120 has 48 divisors (see below), whose sum is σ = 289288260. Its totient is φ = 49007616.

The previous prime is 125510113. The next prime is 125510171. The reversal of 125510120 is 21015521.

It can be written as a sum of positive squares in 2 ways, for example, as 119290084 + 6220036 = 10922^2 + 2494^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73112 + ... + 74808.

Almost surely, 2^125510120 is an apocalyptic number.

125510120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125510120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144644130).

125510120 is an abundant number, since it is smaller than the sum of its proper divisors (163778140).

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

125510120 is a wasteful number, since it uses less digits than its factorization.

125510120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794 (or 1747 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 125510120 is about 11203.1299198037. The cubic root of 125510120 is about 500.6792368568.

Adding to 125510120 its reverse (21015521), we get a palindrome (146525641).

The spelling of 125510120 in words is "one hundred twenty-five million, five hundred ten thousand, one hundred twenty".