104121144 has 96 divisors (see below), whose sum is σ = 290353440. Its totient is φ = 33696000.

The previous prime is 104121139. The next prime is 104121151. The reversal of 104121144 is 441121401.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 663114 + ... + 663270.

It is an arithmetic number, because the mean of its divisors is an integer number (3024515).

Almost surely, 2^104121144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104121144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145176720).

104121144 is an abundant number, since it is smaller than the sum of its proper divisors (186232296).

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

104121144 is a wasteful number, since it uses less digits than its factorization.

104121144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 104121144 is about 10203.9768717888. The cubic root of 104121144 is about 470.4494629023.

Adding to 104121144 its reverse (441121401), we get a palindrome (545242545).

The spelling of 104121144 in words is "one hundred four million, one hundred twenty-one thousand, one hundred forty-four".