1286325 has 18 divisors (see below), whose sum is σ = 2304354. Its totient is φ = 685920.

The previous prime is 1286323. The next prime is 1286359. The reversal of 1286325 is 5236821.

1286325 is a `hidden beast` number, since 1 + 28 + 632 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 106929 + 1179396 = 327^2 + 1086^2 .

It is not a de Polignac number, because 1286325 - 2¹ = 1286323 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286323) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2634 + ... + 3083.

2^1286325 is an apocalyptic number.

1286325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1286325 is a deficient number, since it is larger than the sum of its proper divisors (1018029).

1286325 is a wasteful number, since it uses less digits than its factorization.

1286325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5733 (or 5725 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1286325 is about 1134.1626867430. The cubic root of 1286325 is about 108.7552514309.

The spelling of 1286325 in words is "one million, two hundred eighty-six thousand, three hundred twenty-five".