4518125 has 10 divisors (see below), whose sum is σ = 5646630. Its totient is φ = 3614000.

The previous prime is 4518121. The next prime is 4518133. The reversal of 4518125 is 5218154.

It can be written as a sum of positive squares in 5 ways, for example, as 413449 + 4104676 = 643^2 + 2026^2 .

It is not a de Polignac number, because 4518125 - 2² = 4518121 is a prime.

It is an Ulam number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 4518094 and 4518103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4518121) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2990 + ... + 4239.

It is an arithmetic number, because the mean of its divisors is an integer number (564663).

Almost surely, 2^4518125 is an apocalyptic number.

It is an amenable number.

4518125 is a deficient number, since it is larger than the sum of its proper divisors (1128505).

4518125 is an frugal number, since it uses more digits than its factorization.

4518125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7249 (or 7234 counting only the distinct ones).

The product of its digits is 1600, while the sum is 26.

The square root of 4518125 is about 2125.5881539000. The cubic root of 4518125 is about 165.3177226669.

The spelling of 4518125 in words is "four million, five hundred eighteen thousand, one hundred twenty-five".