1283348849 has 4 divisors (see below), whose sum is σ = 1291848000. Its totient is φ = 1274849700.

The previous prime is 1283348821. The next prime is 1283348879. The reversal of 1283348849 is 9488433821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1283348849 - 2¹² = 1283344753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1283348797 and 1283348806.

It is not an unprimeable number, because it can be changed into a prime (1283348879) 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, 4249349 + ... + 4249650.

It is an arithmetic number, because the mean of its divisors is an integer number (322962000).

Almost surely, 2^1283348849 is an apocalyptic number.

It is an amenable number.

1283348849 is a deficient number, since it is larger than the sum of its proper divisors (8499151).

1283348849 is an equidigital number, since it uses as much as digits as its factorization.

1283348849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8499150.

The product of its digits is 1327104, while the sum is 50.

The square root of 1283348849 is about 35823.8586559293. The cubic root of 1283348849 is about 1086.7131152544.

The spelling of 1283348849 in words is "one billion, two hundred eighty-three million, three hundred forty-eight thousand, eight hundred forty-nine".