1163120 has 80 divisors (see below), whose sum is σ = 3237888. Its totient is φ = 380160.

The previous prime is 1163119. The next prime is 1163131. The reversal of 1163120 is 213611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1163095 and 1163104.

It is a congruent number.

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, 17327 + ... + 17393.

2^1163120 is an apocalyptic number.

1163120 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 1163120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1618944).

1163120 is an abundant number, since it is smaller than the sum of its proper divisors (2074768).

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

1163120 is a wasteful number, since it uses less digits than its factorization.

1163120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1163120 is about 1078.4804124322. The cubic root of 1163120 is about 105.1658753839.

Adding to 1163120 its reverse (213611), we get a palindrome (1376731).

The spelling of 1163120 in words is "one million, one hundred sixty-three thousand, one hundred twenty".