1126445403 has 4 divisors (see below), whose sum is σ = 1501927208. Its totient is φ = 750963600.

The previous prime is 1126445351. The next prime is 1126445413. The reversal of 1126445403 is 3045446211.

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

It is not a de Polignac number, because 1126445403 - 2²⁰ = 1125396827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126445413) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 187740898 + ... + 187740903.

It is an arithmetic number, because the mean of its divisors is an integer number (375481802).

Almost surely, 2^1126445403 is an apocalyptic number.

1126445403 is a deficient number, since it is larger than the sum of its proper divisors (375481805).

1126445403 is an equidigital number, since it uses as much as digits as its factorization.

1126445403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375481804.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1126445403 is about 33562.5595418466. The cubic root of 1126445403 is about 1040.4871371118.

The spelling of 1126445403 in words is "one billion, one hundred twenty-six million, four hundred forty-five thousand, four hundred three".