1128198275 has 6 divisors (see below), whose sum is σ = 1398965892. Its totient is φ = 902558600.

The previous prime is 1128198257. The next prime is 1128198299. The reversal of 1128198275 is 5728918211.

It is not a de Polignac number, because 1128198275 - 2¹⁰ = 1128197251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22563941 + ... + 22563990.

It is an arithmetic number, because the mean of its divisors is an integer number (233160982).

Almost surely, 2^1128198275 is an apocalyptic number.

1128198275 is a deficient number, since it is larger than the sum of its proper divisors (270767617).

1128198275 is an equidigital number, since it uses as much as digits as its factorization.

1128198275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45127941 (or 45127936 counting only the distinct ones).

The product of its digits is 80640, while the sum is 44.

The square root of 1128198275 is about 33588.6628938992. The cubic root of 1128198275 is about 1041.0265612595.

The spelling of 1128198275 in words is "one billion, one hundred twenty-eight million, one hundred ninety-eight thousand, two hundred seventy-five".