1312285 has 12 divisors (see below), whose sum is σ = 1706292. Its totient is φ = 968448.

The previous prime is 1312277. The next prime is 1312301. The reversal of 1312285 is 5822131.

It can be written as a sum of positive squares in 6 ways, for example, as 534361 + 777924 = 731^2 + 882^2 .

It is not a de Polignac number, because 1312285 - 2³ = 1312277 is a prime.

It is a Duffinian number.

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, 69 + ... + 1621.

It is an arithmetic number, because the mean of its divisors is an integer number (142191).

2^1312285 is an apocalyptic number.

It is an amenable number.

1312285 is a deficient number, since it is larger than the sum of its proper divisors (394007).

1312285 is a wasteful number, since it uses less digits than its factorization.

1312285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584 (or 1571 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 1312285 is about 1145.5500862031. The cubic root of 1312285 is about 109.4819997795.

The spelling of 1312285 in words is "one million, three hundred twelve thousand, two hundred eighty-five".