1282643252 has 24 divisors (see below), whose sum is σ = 2449591200. Its totient is φ = 582803360.

The previous prime is 1282643191. The next prime is 1282643269. The reversal of 1282643252 is 2523462821.

It is a happy number.

It is a super-2 number, since 2×1282643252² = 3290347423802271008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221498 + ... + 227214.

It is an arithmetic number, because the mean of its divisors is an integer number (102066300).

Almost surely, 2^1282643252 is an apocalyptic number.

It is an amenable number.

1282643252 is a deficient number, since it is larger than the sum of its proper divisors (1166947948).

1282643252 is a wasteful number, since it uses less digits than its factorization.

1282643252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10831 (or 10829 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 1282643252 is about 35814.0091584285. The cubic root of 1282643252 is about 1086.5139171212.

The spelling of 1282643252 in words is "one billion, two hundred eighty-two million, six hundred forty-three thousand, two hundred fifty-two".