1283215684 has 9 divisors (see below), whose sum is σ = 2245752831. Its totient is φ = 641572020.

The previous prime is 1283215679. The next prime is 1283215697. The reversal of 1283215684 is 4865123821.

The square root of 1283215684 is 35822.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 62689 + ... + 80599.

Almost surely, 2^1283215684 is an apocalyptic number.

1283215684 is the 35822-nd square number.

It is an amenable number.

1283215684 is a deficient number, since it is larger than the sum of its proper divisors (962537147).

1283215684 is an frugal number, since it uses more digits than its factorization.

1283215684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35826 (or 17913 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The cubic root of 1283215684 is about 1086.6755268367.

The spelling of 1283215684 in words is "one billion, two hundred eighty-three million, two hundred fifteen thousand, six hundred eighty-four".