1161200 has 30 divisors (see below), whose sum is σ = 2790744. Its totient is φ = 464320.

The previous prime is 1161169. The next prime is 1161203. The reversal of 1161200 is 21611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1052 + ... + 1851.

2^1161200 is an apocalyptic number.

1161200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161200 is an abundant number, since it is smaller than the sum of its proper divisors (1629544).

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

1161200 is a wasteful number, since it uses less digits than its factorization.

1161200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921 (or 2910 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1161200 is about 1077.5899034419. The cubic root of 1161200 is about 105.1079766039.

Adding to 1161200 its reverse (21611), we get a palindrome (1182811).

The spelling of 1161200 in words is "one million, one hundred sixty-one thousand, two hundred".