1161194528 has 96 divisors (see below), whose sum is σ = 2564997120. Its totient is φ = 513838080.

The previous prime is 1161194513. The next prime is 1161194561. The reversal of 1161194528 is 8254911611.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1161194491 and 1161194500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1637438 + ... + 1638146.

It is an arithmetic number, because the mean of its divisors is an integer number (26718720).

Almost surely, 2^1161194528 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 1161194528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282498560).

1161194528 is an abundant number, since it is smaller than the sum of its proper divisors (1403802592).

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

1161194528 is a wasteful number, since it uses less digits than its factorization.

1161194528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 882 counting only the distinct ones).

The product of its digits is 17280, while the sum is 38.

The square root of 1161194528 is about 34076.3044944724. The cubic root of 1161194528 is about 1051.0781150117.

The spelling of 1161194528 in words is "one billion, one hundred sixty-one million, one hundred ninety-four thousand, five hundred twenty-eight".