104001136 has 40 divisors (see below), whose sum is σ = 212979920. Its totient is φ = 49061376.

The previous prime is 104001119. The next prime is 104001137. The reversal of 104001136 is 631100401.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104001137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94606 + ... + 95698.

It is an arithmetic number, because the mean of its divisors is an integer number (5324498).

Almost surely, 2^104001136 is an apocalyptic number.

104001136 is a gapful number since it is divisible by the number (16) 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 104001136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106489960).

104001136 is an abundant number, since it is smaller than the sum of its proper divisors (108978784).

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

104001136 is a wasteful number, since it uses less digits than its factorization.

104001136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 104001136 is about 10198.0947240159. The cubic root of 104001136 is about 470.2686497919.

Adding to 104001136 its reverse (631100401), we get a palindrome (735101537).

The spelling of 104001136 in words is "one hundred four million, one thousand, one hundred thirty-six".