1282643275 has 6 divisors (see below), whose sum is σ = 1590477692. Its totient is φ = 1026114600.

The previous prime is 1282643273. The next prime is 1282643293. The reversal of 1282643275 is 5723462821.

It is not a de Polignac number, because 1282643275 - 2¹ = 1282643273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1282643273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25652841 + ... + 25652890.

Almost surely, 2^1282643275 is an apocalyptic number.

1282643275 is a deficient number, since it is larger than the sum of its proper divisors (307834417).

1282643275 is an equidigital number, since it uses as much as digits as its factorization.

1282643275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51305741 (or 51305736 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 1282643275 is about 35814.0094795319. The cubic root of 1282643275 is about 1086.5139236156.

The spelling of 1282643275 in words is "one billion, two hundred eighty-two million, six hundred forty-three thousand, two hundred seventy-five".