1153109562 has 64 divisors (see below), whose sum is σ = 2581383168. Its totient is φ = 340400000.

The previous prime is 1153109557. The next prime is 1153109569. The reversal of 1153109562 is 2659013511.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1153109569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 777862 + ... + 779342.

It is an arithmetic number, because the mean of its divisors is an integer number (40334112).

Almost surely, 2^1153109562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1153109562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1290691584).

1153109562 is an abundant number, since it is smaller than the sum of its proper divisors (1428273606).

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

1153109562 is a wasteful number, since it uses less digits than its factorization.

1153109562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 1153109562 is about 33957.4669550012. The cubic root of 1153109562 is about 1048.6330093013.

The spelling of 1153109562 in words is "one billion, one hundred fifty-three million, one hundred nine thousand, five hundred sixty-two".