125503112 has 96 divisors (see below), whose sum is σ = 298258200. Its totient is φ = 49158144.

The previous prime is 125503093. The next prime is 125503121. The reversal of 125503112 is 211305521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 122633476 + 2869636 = 11074^2 + 1694^2 .

It is a super-2 number, since 2×125503112² = 31502062243369088, which contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 246314 + ... + 246822.

Almost surely, 2^125503112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125503112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149129100).

125503112 is an abundant number, since it is smaller than the sum of its proper divisors (172755088).

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

125503112 is a wasteful number, since it uses less digits than its factorization.

125503112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 125503112 is about 11202.8171457005. The cubic root of 125503112 is about 500.6699180188.

Adding to 125503112 its reverse (211305521), we get a palindrome (336808633).

The spelling of 125503112 in words is "one hundred twenty-five million, five hundred three thousand, one hundred twelve".