1285486315 has 4 divisors (see below), whose sum is σ = 1542583584. Its totient is φ = 1028389048.

The previous prime is 1285486313. The next prime is 1285486339. The reversal of 1285486315 is 5136845821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1285486315 - 2¹ = 1285486313 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 128548627 + ... + 128548636.

It is an arithmetic number, because the mean of its divisors is an integer number (385645896).

Almost surely, 2^1285486315 is an apocalyptic number.

1285486315 is a deficient number, since it is larger than the sum of its proper divisors (257097269).

1285486315 is an equidigital number, since it uses as much as digits as its factorization.

1285486315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257097268.

The product of its digits is 230400, while the sum is 43.

The square root of 1285486315 is about 35853.6792393751. The cubic root of 1285486315 is about 1087.3161011980.

The spelling of 1285486315 in words is "one billion, two hundred eighty-five million, four hundred eighty-six thousand, three hundred fifteen".