1128745545 has 8 divisors (see below), whose sum is σ = 1805992896. Its totient is φ = 601997616.

The previous prime is 1128745531. The next prime is 1128745591. The reversal of 1128745545 is 5455478211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1128745545 - 2⁴ = 1128745529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1128745497 and 1128745506.

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 7 ways as a sum of consecutive naturals, for example, 37624837 + ... + 37624866.

It is an arithmetic number, because the mean of its divisors is an integer number (225749112).

Almost surely, 2^1128745545 is an apocalyptic number.

1128745545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1128745545 is a deficient number, since it is larger than the sum of its proper divisors (677247351).

1128745545 is an equidigital number, since it uses as much as digits as its factorization.

1128745545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75249711.

The product of its digits is 224000, while the sum is 42.

The square root of 1128745545 is about 33596.8085537897. The cubic root of 1128745545 is about 1041.1948622052.

The spelling of 1128745545 in words is "one billion, one hundred twenty-eight million, seven hundred forty-five thousand, five hundred forty-five".