1128173498 has 4 divisors (see below), whose sum is σ = 1692260250. Its totient is φ = 564086748.

The previous prime is 1128173489. The next prime is 1128173503. The reversal of 1128173498 is 8943718211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8943718211 = 967 ⋅9248933.

It can be written as a sum of positive squares in only one way, i.e., 809800849 + 318372649 = 28457^2 + 17843^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282043373 + ... + 282043376.

Almost surely, 2^1128173498 is an apocalyptic number.

1128173498 is a deficient number, since it is larger than the sum of its proper divisors (564086752).

1128173498 is an equidigital number, since it uses as much as digits as its factorization.

1128173498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564086751.

The product of its digits is 96768, while the sum is 44.

The square root of 1128173498 is about 33588.2940620687. The cubic root of 1128173498 is about 1041.0189403461.

The spelling of 1128173498 in words is "one billion, one hundred twenty-eight million, one hundred seventy-three thousand, four hundred ninety-eight".