1263125 has 20 divisors (see below), whose sum is σ = 1649472. Its totient is φ = 966000.

The previous prime is 1263121. The next prime is 1263133. The reversal of 1263125 is 5213621.

It is not a de Polignac number, because 1263125 - 2² = 1263121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1263097 and 1263106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26852 + ... + 26898.

2^1263125 is an apocalyptic number.

It is an amenable number.

1263125 is a deficient number, since it is larger than the sum of its proper divisors (386347).

1263125 is an frugal number, since it uses more digits than its factorization.

1263125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 95 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 1263125 is about 1123.8883396495. Note that the first 3 decimals coincide. The cubic root of 1263125 is about 108.0974486252.

Adding to 1263125 its reverse (5213621), we get a palindrome (6476746).

The spelling of 1263125 in words is "one million, two hundred sixty-three thousand, one hundred twenty-five".