1117556136 has 128 divisors (see below), whose sum is σ = 3282048000. Its totient is φ = 351366336.

The previous prime is 1117556129. The next prime is 1117556161. The reversal of 1117556136 is 6316557111.

It is a super-2 number, since 2×1117556136² = 2497863434222500992, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1117556136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1259485 + ... + 1260371.

It is an arithmetic number, because the mean of its divisors is an integer number (25641000).

Almost surely, 2^1117556136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1117556136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641024000).

1117556136 is an abundant number, since it is smaller than the sum of its proper divisors (2164491864).

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

1117556136 is a wasteful number, since it uses less digits than its factorization.

1117556136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228 (or 1218 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 1117556136 is about 33429.8689198746. The cubic root of 1117556136 is about 1037.7429280858.

The spelling of 1117556136 in words is "one billion, one hundred seventeen million, five hundred fifty-six thousand, one hundred thirty-six".