1285282873 has 32 divisors (see below), whose sum is σ = 1573770240. Its totient is φ = 1025265600.

The previous prime is 1285282861. The next prime is 1285282879. The reversal of 1285282873 is 3782825821.

It is a cyclic number.

It is not a de Polignac number, because 1285282873 - 2²⁵ = 1251728441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1285282879) 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 31 ways as a sum of consecutive naturals, for example, 2189286 + ... + 2189872.

It is an arithmetic number, because the mean of its divisors is an integer number (49180320).

Almost surely, 2^1285282873 is an apocalyptic number.

It is an amenable number.

1285282873 is a deficient number, since it is larger than the sum of its proper divisors (288487367).

1285282873 is a wasteful number, since it uses less digits than its factorization.

1285282873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877.

The product of its digits is 430080, while the sum is 46.

The square root of 1285282873 is about 35850.8420124270. The cubic root of 1285282873 is about 1087.2587383593.

The spelling of 1285282873 in words is "one billion, two hundred eighty-five million, two hundred eighty-two thousand, eight hundred seventy-three".