1285307 has 4 divisors (see below), whose sum is σ = 1288296. Its totient is φ = 1282320.

The previous prime is 1285301. The next prime is 1285351. The reversal of 1285307 is 7035821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7035821 = 13 ⋅541217.

It is a cyclic number.

It is not a de Polignac number, because 1285307 - 2⁸ = 1285051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1285301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713 + ... + 1754.

It is an arithmetic number, because the mean of its divisors is an integer number (322074).

2^1285307 is an apocalyptic number.

1285307 is a deficient number, since it is larger than the sum of its proper divisors (2989).

1285307 is an equidigital number, since it uses as much as digits as its factorization.

1285307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1285307 is about 1133.7138086837. The cubic root of 1285307 is about 108.7265541564.

The spelling of 1285307 in words is "one million, two hundred eighty-five thousand, three hundred seven".