104143540 has 48 divisors (see below), whose sum is σ = 233114112. Its totient is φ = 38990336.

The previous prime is 104143499. The next prime is 104143573. The reversal of 104143540 is 45341401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19212 + ... + 24028.

It is an arithmetic number, because the mean of its divisors is an integer number (4856544).

Almost surely, 2^104143540 is an apocalyptic number.

104143540 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 104143540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116557056).

104143540 is an abundant number, since it is smaller than the sum of its proper divisors (128970572).

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

104143540 is a wasteful number, since it uses less digits than its factorization.

104143540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896 (or 4894 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 104143540 is about 10205.0742280495. The cubic root of 104143540 is about 470.4831910208.

Adding to 104143540 its reverse (45341401), we get a palindrome (149484941).

The spelling of 104143540 in words is "one hundred four million, one hundred forty-three thousand, five hundred forty".