1263425 has 12 divisors (see below), whose sum is σ = 1585836. Its totient is φ = 998400.

The previous prime is 1263403. The next prime is 1263461. The reversal of 1263425 is 5243621.

It can be written as a sum of positive squares in 6 ways, for example, as 94864 + 1168561 = 308^2 + 1081^2 .

It is not a de Polignac number, because 1263425 - 2¹² = 1259329 is a prime.

It is a d-powerful number, because it can be written as 1 + 2⁹ + 6⁴ + 3¹¹ + 4¹⁰ + 2¹⁵ + 5⁵ .

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1263425.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2165 + ... + 2685.

It is an arithmetic number, because the mean of its divisors is an integer number (132153).

2^1263425 is an apocalyptic number.

It is an amenable number.

1263425 is a deficient number, since it is larger than the sum of its proper divisors (322411).

1263425 is an equidigital number, since it uses as much as digits as its factorization.

1263425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 623 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 1263425 is about 1124.0217969417. The cubic root of 1263425 is about 108.1060058854.

The spelling of 1263425 in words is "one million, two hundred sixty-three thousand, four hundred twenty-five".