1285282874 has 8 divisors (see below), whose sum is σ = 1945612020. Its totient is φ = 636745536.

The previous prime is 1285282861. The next prime is 1285282879. The reversal of 1285282874 is 4782825821.

It can be written as a sum of positive squares in 2 ways, for example, as 1193218849 + 92064025 = 34543^2 + 9595^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 2947679 + ... + 2948114.

Almost surely, 2^1285282874 is an apocalyptic number.

1285282874 is a deficient number, since it is larger than the sum of its proper divisors (660329146).

1285282874 is a wasteful number, since it uses less digits than its factorization.

1285282874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895904.

The product of its digits is 573440, while the sum is 47.

The square root of 1285282874 is about 35850.8420263737. The cubic root of 1285282874 is about 1087.2587386412.

The spelling of 1285282874 in words is "one billion, two hundred eighty-five million, two hundred eighty-two thousand, eight hundred seventy-four".