1104138 has 64 divisors (see below), whose sum is σ = 2949120. Its totient is φ = 299376.

The previous prime is 1104137. The next prime is 1104139. The reversal of 1104138 is 8314011.

1104138 = T₂₇ + T₂₈ + ... + T₁₈₇.

It is an interprime number because it is at equal distance from previous prime (1104137) and next prime (1104139).

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1104138.

It is not an unprimeable number, because it can be changed into a prime (1104137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8631 + ... + 8757.

It is an arithmetic number, because the mean of its divisors is an integer number (46080).

2^1104138 is an apocalyptic number.

1104138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1104138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474560).

1104138 is an abundant number, since it is smaller than the sum of its proper divisors (1844982).

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

1104138 is a wasteful number, since it uses less digits than its factorization.

1104138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1104138 is about 1050.7797105007. The cubic root of 1104138 is about 103.3572912422.

Adding to 1104138 its reverse (8314011), we get a palindrome (9418149).

The spelling of 1104138 in words is "one million, one hundred four thousand, one hundred thirty-eight".