4003125 has 48 divisors (see below), whose sum is σ = 7749504. Its totient is φ = 1800000.

The previous prime is 4003121. The next prime is 4003133. The reversal of 4003125 is 5213004.

It is not a de Polignac number, because 4003125 - 2² = 4003121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4003121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65595 + ... + 65655.

It is an arithmetic number, because the mean of its divisors is an integer number (161448).

Almost surely, 2^4003125 is an apocalyptic number.

It is an amenable number.

4003125 is a deficient number, since it is larger than the sum of its proper divisors (3746379).

4003125 is an frugal number, since it uses more digits than its factorization.

4003125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 4003125 is about 2000.7810974717. The cubic root of 4003125 is about 158.7814330053.

Adding to 4003125 its reverse (5213004), we get a palindrome (9216129).

The spelling of 4003125 in words is "four million, three thousand, one hundred twenty-five".