1285282875 has 64 divisors (see below), whose sum is σ = 2326147200. Its totient is φ = 627609600.

The previous prime is 1285282861. The next prime is 1285282879. The reversal of 1285282875 is 5782825821.

It is not a de Polignac number, because 1285282875 - 2¹¹ = 1285280827 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1285282879) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 233151 + ... + 238599.

It is an arithmetic number, because the mean of its divisors is an integer number (36346050).

Almost surely, 2^1285282875 is an apocalyptic number.

1285282875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1285282875 is a deficient number, since it is larger than the sum of its proper divisors (1040864325).

1285282875 is a wasteful number, since it uses less digits than its factorization.

1285282875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5521 (or 5511 counting only the distinct ones).

The product of its digits is 716800, while the sum is 48.

The square root of 1285282875 is about 35850.8420403203. The cubic root of 1285282875 is about 1087.2587389232.

The spelling of 1285282875 in words is "one billion, two hundred eighty-five million, two hundred eighty-two thousand, eight hundred seventy-five".