1283648715 has 32 divisors (see below), whose sum is σ = 2310235200. Its totient is φ = 684606816.

The previous prime is 1283648669. The next prime is 1283648741. The reversal of 1283648715 is 5178463821.

1283648715 is a `hidden beast` number, since 128 + 36 + 487 + 15 = 666.

It is not a de Polignac number, because 1283648715 - 2¹⁸ = 1283386571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47760 + ... + 69629.

It is an arithmetic number, because the mean of its divisors is an integer number (72194850).

Almost surely, 2^1283648715 is an apocalyptic number.

1283648715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1283648715 is a deficient number, since it is larger than the sum of its proper divisors (1026586485).

1283648715 is an frugal number, since it uses more digits than its factorization.

1283648715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117415 (or 117397 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 1283648715 is about 35828.0436948489. The cubic root of 1283648715 is about 1086.7977487604.

The spelling of 1283648715 in words is "one billion, two hundred eighty-three million, six hundred forty-eight thousand, seven hundred fifteen".