1286725 has 12 divisors (see below), whose sum is σ = 1740960. Its totient is φ = 935600.

The previous prime is 1286711. The next prime is 1286773. The reversal of 1286725 is 5276821.

It is not a de Polignac number, because 1286725 - 2⁵ = 1286693 is a prime.

It is a super-2 number, since 2×1286725² = 3311322451250, which contains 22 as substring.

It is a plaindrome in base 14.

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, 2065 + ... + 2614.

It is an arithmetic number, because the mean of its divisors is an integer number (145080).

2^1286725 is an apocalyptic number.

It is an amenable number.

1286725 is a deficient number, since it is larger than the sum of its proper divisors (454235).

1286725 is a wasteful number, since it uses less digits than its factorization.

1286725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700 (or 4695 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 1286725 is about 1134.3390145807. The cubic root of 1286725 is about 108.7665232303.

The spelling of 1286725 in words is "one million, two hundred eighty-six thousand, seven hundred twenty-five".