1285315 has 8 divisors (see below), whose sum is σ = 1568880. Its totient is φ = 1010592.

The previous prime is 1285301. The next prime is 1285351. The reversal of 1285315 is 5135821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1285315 - 2⁵ = 1285283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1285315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1884 + ... + 2473.

It is an arithmetic number, because the mean of its divisors is an integer number (196110).

2^1285315 is an apocalyptic number.

1285315 is a deficient number, since it is larger than the sum of its proper divisors (283565).

1285315 is an equidigital number, since it uses as much as digits as its factorization.

1285315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4421.

The product of its digits is 1200, while the sum is 25.

The square root of 1285315 is about 1133.7173369055. The cubic root of 1285315 is about 108.7267797343.

It can be divided in two parts, 1285 and 315, that added together give a square (1600 = 40²).

The spelling of 1285315 in words is "one million, two hundred eighty-five thousand, three hundred fifteen".