1126983478 has 4 divisors (see below), whose sum is σ = 1690475220. Its totient is φ = 563491738.

The previous prime is 1126983457. The next prime is 1126983491. The reversal of 1126983478 is 8743896211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8743896211 = 4463 ⋅1959197.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281745868 + ... + 281745871.

It is an arithmetic number, because the mean of its divisors is an integer number (422618805).

Almost surely, 2^1126983478 is an apocalyptic number.

1126983478 is a deficient number, since it is larger than the sum of its proper divisors (563491742).

1126983478 is an equidigital number, since it uses as much as digits as its factorization.

1126983478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563491741.

The product of its digits is 580608, while the sum is 49.

The square root of 1126983478 is about 33570.5745854908. The cubic root of 1126983478 is about 1040.6527823633.

The spelling of 1126983478 in words is "one billion, one hundred twenty-six million, nine hundred eighty-three thousand, four hundred seventy-eight".