1125625 has 10 divisors (see below), whose sum is σ = 1407362. Its totient is φ = 900000.

The previous prime is 1125599. The next prime is 1125629. The reversal of 1125625 is 5265211.

It can be written as a sum of positive squares in 5 ways, for example, as 674041 + 451584 = 821^2 + 672^2 .

It is not a de Polignac number, because 1125625 - 2¹³ = 1117433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125596 and 1125605.

It is not an unprimeable number, because it can be changed into a prime (1125629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 276 + ... + 1525.

2^1125625 is an apocalyptic number.

It is an amenable number.

1125625 is a deficient number, since it is larger than the sum of its proper divisors (281737).

1125625 is an frugal number, since it uses more digits than its factorization.

1125625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1806 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 1125625 is about 1060.9547586961. The cubic root of 1125625 is about 104.0234476224.

The spelling of 1125625 in words is "one million, one hundred twenty-five thousand, six hundred twenty-five".