1129228456 has 16 divisors (see below), whose sum is σ = 2174528340. Its totient is φ = 549354240.

The previous prime is 1129228433. The next prime is 1129228487. The reversal of 1129228456 is 6548229211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1051964356 + 77264100 = 32434^2 + 8790^2 .

It is an unprimeable number.

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, 1907185 + ... + 1907776.

Almost surely, 2^1129228456 is an apocalyptic number.

It is an amenable number.

1129228456 is a deficient number, since it is larger than the sum of its proper divisors (1045299884).

1129228456 is a wasteful number, since it uses less digits than its factorization.

1129228456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815004 (or 3815000 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 1129228456 is about 33603.9946434944. The cubic root of 1129228456 is about 1041.3433257707.

The spelling of 1129228456 in words is "one billion, one hundred twenty-nine million, two hundred twenty-eight thousand, four hundred fifty-six".