1283478043 has 4 divisors (see below), whose sum is σ = 1301060008. Its totient is φ = 1265896080.

The previous prime is 1283478041. The next prime is 1283478067. The reversal of 1283478043 is 3408743821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1283478043 - 2¹ = 1283478041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1283477987 and 1283478005.

It is not an unprimeable number, because it can be changed into a prime (1283478041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8790873 + ... + 8791018.

It is an arithmetic number, because the mean of its divisors is an integer number (325265002).

Almost surely, 2^1283478043 is an apocalyptic number.

1283478043 is a deficient number, since it is larger than the sum of its proper divisors (17581965).

1283478043 is an equidigital number, since it uses as much as digits as its factorization.

1283478043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17581964.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 1283478043 is about 35825.6617943060. The cubic root of 1283478043 is about 1086.7495802949.

The spelling of 1283478043 in words is "one billion, two hundred eighty-three million, four hundred seventy-eight thousand, forty-three".