1128135436 has 12 divisors (see below), whose sum is σ = 2090368728. Its totient is φ = 530887232.

The previous prime is 1128135433. The next prime is 1128135443. The reversal of 1128135436 is 6345318211.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (1128135433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8295046 + ... + 8295181.

It is an arithmetic number, because the mean of its divisors is an integer number (174197394).

Almost surely, 2^1128135436 is an apocalyptic number.

It is an amenable number.

1128135436 is a deficient number, since it is larger than the sum of its proper divisors (962233292).

1128135436 is a wasteful number, since it uses less digits than its factorization.

1128135436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16590248 (or 16590246 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 1128135436 is about 33587.7274610832. The cubic root of 1128135436 is about 1041.0072330131.

The spelling of 1128135436 in words is "one billion, one hundred twenty-eight million, one hundred thirty-five thousand, four hundred thirty-six".