1161241224 has 128 divisors (see below), whose sum is σ = 3454617600. Its totient is φ = 320636160.

The previous prime is 1161241163. The next prime is 1161241231. The reversal of 1161241224 is 4221421611.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 1161241194 and 1161241203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268987 + ... + 273269.

It is an arithmetic number, because the mean of its divisors is an integer number (26989200).

Almost surely, 2^1161241224 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 1161241224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1727308800).

1161241224 is an abundant number, since it is smaller than the sum of its proper divisors (2293376376).

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

1161241224 is a wasteful number, since it uses less digits than its factorization.

1161241224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395 (or 4391 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 1161241224 is about 34076.9896557780. The cubic root of 1161241224 is about 1051.0922040911.

Adding to 1161241224 its reverse (4221421611), we get a palindrome (5382662835).

The spelling of 1161241224 in words is "one billion, one hundred sixty-one million, two hundred forty-one thousand, two hundred twenty-four".