1285486317 has 12 divisors (see below), whose sum is σ = 1870173760. Its totient is φ = 850824648.

The previous prime is 1285486313. The next prime is 1285486339. The reversal of 1285486317 is 7136845821.

1285486317 is a `hidden beast` number, since 1 + 2 + 8 + 5 + 4 + 8 + 631 + 7 = 666.

It is not a de Polignac number, because 1285486317 - 2² = 1285486313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285486313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512533 + ... + 515034.

Almost surely, 2^1285486317 is an apocalyptic number.

It is an amenable number.

1285486317 is a deficient number, since it is larger than the sum of its proper divisors (584687443).

1285486317 is a wasteful number, since it uses less digits than its factorization.

1285486317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027712 (or 1027709 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 1285486317 is about 35853.6792672663. The cubic root of 1285486317 is about 1087.3161017619.

The spelling of 1285486317 in words is "one billion, two hundred eighty-five million, four hundred eighty-six thousand, three hundred seventeen".