1128358543 has 4 divisors (see below), whose sum is σ = 1215155368. Its totient is φ = 1041561720.

The previous prime is 1128358519. The next prime is 1128358547. The reversal of 1128358543 is 3458538211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3458538211 = 199 ⋅17379589.

It is a cyclic number.

It is not a de Polignac number, because 1128358543 - 2²¹ = 1126261391 is a prime.

It is a super-2 number, since 2×1128358543² = 2546386003122165698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1128358496 and 1128358505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128358547) 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, 43398393 + ... + 43398418.

It is an arithmetic number, because the mean of its divisors is an integer number (303788842).

Almost surely, 2^1128358543 is an apocalyptic number.

1128358543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1128358543 is a deficient number, since it is larger than the sum of its proper divisors (86796825).

1128358543 is an equidigital number, since it uses as much as digits as its factorization.

1128358543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86796824.

The product of its digits is 115200, while the sum is 40.

The square root of 1128358543 is about 33591.0485546373. The cubic root of 1128358543 is about 1041.0758538200.

The spelling of 1128358543 in words is "one billion, one hundred twenty-eight million, three hundred fifty-eight thousand, five hundred forty-three".