104143021225 has 24 divisors (see below), whose sum is σ = 129477284352. Its totient is φ = 83095420800.

The previous prime is 104143021201. The next prime is 104143021243. The reversal of 104143021225 is 522120341401.

It is not a de Polignac number, because 104143021225 - 2¹³ = 104143013033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104143021225.

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, 16415404 + ... + 16421746.

It is an arithmetic number, because the mean of its divisors is an integer number (5394886848).

Almost surely, 2^104143021225 is an apocalyptic number.

It is an amenable number.

104143021225 is a deficient number, since it is larger than the sum of its proper divisors (25334263127).

104143021225 is an equidigital number, since it uses as much as digits as its factorization.

104143021225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7977 (or 7972 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 104143021225 its reverse (522120341401), we get a palindrome (626263362626).

The spelling of 104143021225 in words is "one hundred four billion, one hundred forty-three million, twenty-one thousand, two hundred twenty-five".