1161104 has 30 divisors (see below), whose sum is σ = 2618694. Its totient is φ = 497280.

The previous prime is 1161101. The next prime is 1161107. The reversal of 1161104 is 4011611.

It is an interprime number because it is at equal distance from previous prime (1161101) and next prime (1161107).

It can be written as a sum of positive squares in only one way, i.e., 960400 + 200704 = 980^2 + 448^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1161101) 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, 44 + ... + 1524.

2^1161104 is an apocalyptic number.

1161104 is a gapful number since it is divisible by the number (14) 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 1161104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1309347).

1161104 is an abundant number, since it is smaller than the sum of its proper divisors (1457590).

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

1161104 is a wasteful number, since it uses less digits than its factorization.

1161104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503 (or 1490 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1161104 is about 1077.5453586741. The cubic root of 1161104 is about 105.1050799901.

Adding to 1161104 its reverse (4011611), we get a palindrome (5172715).

The spelling of 1161104 in words is "one million, one hundred sixty-one thousand, one hundred four".