1128093449 has 4 divisors (see below), whose sum is σ = 1289249664. Its totient is φ = 966937236.

The previous prime is 1128093437. The next prime is 1128093467. The reversal of 1128093449 is 9443908211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9443908211 = 389 ⋅24277399.

It is a cyclic number.

It is not a de Polignac number, because 1128093449 - 2¹² = 1128089353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1128093469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80578097 + ... + 80578110.

It is an arithmetic number, because the mean of its divisors is an integer number (322312416).

Almost surely, 2^1128093449 is an apocalyptic number.

It is an amenable number.

1128093449 is a deficient number, since it is larger than the sum of its proper divisors (161156215).

1128093449 is an equidigital number, since it uses as much as digits as its factorization.

1128093449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161156214.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1128093449 is about 33587.1024204232. The cubic root of 1128093449 is about 1040.9943181001.

The spelling of 1128093449 in words is "one billion, one hundred twenty-eight million, ninety-three thousand, four hundred forty-nine".