4000125 has 16 divisors (see below), whose sum is σ = 6656832. Its totient is φ = 2133200.

The previous prime is 4000093. The next prime is 4000133. The reversal of 4000125 is 5210004.

It is not a de Polignac number, because 4000125 - 2⁵ = 4000093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4000125.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4959 + ... + 5708.

It is an arithmetic number, because the mean of its divisors is an integer number (416052).

Almost surely, 2^4000125 is an apocalyptic number.

It is an amenable number.

4000125 is a deficient number, since it is larger than the sum of its proper divisors (2656707).

4000125 is a wasteful number, since it uses less digits than its factorization.

4000125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10685 (or 10675 counting only the distinct ones).

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

The square root of 4000125 is about 2000.0312497559. The cubic root of 4000125 is about 158.7417587224.

Adding to 4000125 its reverse (5210004), we get a palindrome (9210129).

The spelling of 4000125 in words is "four million, one hundred twenty-five", and thus it is an aban number.