1161052200 has 288 divisors, whose sum is σ = 4861920960. Its totient is φ = 241228800.

The previous prime is 1161052199. The next prime is 1161052229. The reversal of 1161052200 is 22501611.

1161052200 is a `hidden beast` number, since 1 + 1 + 610 + 52 + 2 + 0 + 0 = 666.

It is a super-2 number, since 2×1161052200² = 2696084422249680000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 134412 + ... + 142788.

It is an arithmetic number, because the mean of its divisors is an integer number (16881670).

Almost surely, 2^1161052200 is an apocalyptic number.

1161052200 is a gapful number since it is divisible by the number (10) 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 1161052200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2430960480).

1161052200 is an abundant number, since it is smaller than the sum of its proper divisors (3700868760).

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

1161052200 is a wasteful number, since it uses less digits than its factorization.

1161052200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8417 (or 8405 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1161052200 is about 34074.2160584803. The cubic root of 1161052200 is about 1051.0351695922.

Adding to 1161052200 its reverse (22501611), we get a palindrome (1183553811).

The spelling of 1161052200 in words is "one billion, one hundred sixty-one million, fifty-two thousand, two hundred".