1285479814 has 8 divisors (see below), whose sum is σ = 1929573360. Its totient is φ = 642288696.

The previous prime is 1285479809. The next prime is 1285479817. The reversal of 1285479814 is 4189745821.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285479817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222034 + ... + 227749.

It is an arithmetic number, because the mean of its divisors is an integer number (241196670).

Almost surely, 2^1285479814 is an apocalyptic number.

1285479814 is a deficient number, since it is larger than the sum of its proper divisors (644093546).

1285479814 is a wasteful number, since it uses less digits than its factorization.

1285479814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451214.

The product of its digits is 645120, while the sum is 49.

The square root of 1285479814 is about 35853.5885791088. The cubic root of 1285479814 is about 1087.3142682591.

The spelling of 1285479814 in words is "one billion, two hundred eighty-five million, four hundred seventy-nine thousand, eight hundred fourteen".