1250000125 has 16 divisors (see below), whose sum is σ = 1701820224. Its totient is φ = 909090000.

The previous prime is 1250000111. The next prime is 1250000149. The reversal of 1250000125 is 5210000521.

It is not a de Polignac number, because 1250000125 - 2⁵ = 1250000093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1250000099 and 1250000108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453171 + ... + 455920.

It is an arithmetic number, because the mean of its divisors is an integer number (106363764).

Almost surely, 2^1250000125 is an apocalyptic number.

It is an amenable number.

1250000125 is a deficient number, since it is larger than the sum of its proper divisors (451820099).

1250000125 is an equidigital number, since it uses as much as digits as its factorization.

1250000125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909117 (or 909107 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1250000125 is about 35355.3408270943. The cubic root of 1250000125 is about 1077.2173809232.

Adding to 1250000125 its reverse (5210000521), we get a palindrome (6460000646).

It can be divided in two parts, 1250000 and 125, that multiplied together give a square (156250000 = 12500²).

The spelling of 1250000125 in words is "one billion, two hundred fifty million, one hundred twenty-five", and thus it is an aban number.