1287472858 has 16 divisors (see below), whose sum is σ = 2210554944. Its totient is φ = 550909440.

The previous prime is 1287472829. The next prime is 1287472861. The reversal of 1287472858 is 8582747821.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 62760 + ... + 80707.

It is an arithmetic number, because the mean of its divisors is an integer number (138159684).

Almost surely, 2^1287472858 is an apocalyptic number.

1287472858 is a deficient number, since it is larger than the sum of its proper divisors (923082086).

1287472858 is a wasteful number, since it uses less digits than its factorization.

1287472858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144117.

The product of its digits is 2007040, while the sum is 52.

The square root of 1287472858 is about 35881.3720194755. The cubic root of 1287472858 is about 1087.8759122872.

The spelling of 1287472858 in words is "one billion, two hundred eighty-seven million, four hundred seventy-two thousand, eight hundred fifty-eight".