1128319158 has 16 divisors (see below), whose sum is σ = 2257248816. Its totient is φ = 376004640.

The previous prime is 1128319147. The next prime is 1128319169. The reversal of 1128319158 is 8519138211.

It is an interprime number because it is at equal distance from previous prime (1128319147) and next prime (1128319169).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648 + ... + 47508.

It is an arithmetic number, because the mean of its divisors is an integer number (141078051).

Almost surely, 2^1128319158 is an apocalyptic number.

1128319158 is an abundant number, since it is smaller than the sum of its proper divisors (1128929658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1128319158 is a wasteful number, since it uses less digits than its factorization.

1128319158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50879.

The product of its digits is 17280, while the sum is 39.

The square root of 1128319158 is about 33590.4623070300. The cubic root of 1128319158 is about 1041.0637408706.

The spelling of 1128319158 in words is "one billion, one hundred twenty-eight million, three hundred nineteen thousand, one hundred fifty-eight".