1128347136 has 120 divisors (see below), whose sum is σ = 3721804944. Its totient is φ = 322375680.

The previous prime is 1128347117. The next prime is 1128347141. The reversal of 1128347136 is 6317438211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1128347136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14766 + ... + 49746.

Almost surely, 2^1128347136 is an apocalyptic number.

1128347136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1128347136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1860902472).

1128347136 is an abundant number, since it is smaller than the sum of its proper divisors (2593457808).

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

1128347136 is an equidigital number, since it uses as much as digits as its factorization.

1128347136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35012 (or 34993 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 1128347136 is about 33590.8787619496. The cubic root of 1128347136 is about 1041.0723455993.

The spelling of 1128347136 in words is "one billion, one hundred twenty-eight million, three hundred forty-seven thousand, one hundred thirty-six".