104543121 has 4 divisors (see below), whose sum is σ = 139390832. Its totient is φ = 69695412.

The previous prime is 104543107. The next prime is 104543123. The reversal of 104543121 is 121345401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 104543121 - 2⁹ = 104542609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104543123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17423851 + ... + 17423856.

It is an arithmetic number, because the mean of its divisors is an integer number (34847708).

Almost surely, 2^104543121 is an apocalyptic number.

It is an amenable number.

104543121 is a deficient number, since it is larger than the sum of its proper divisors (34847711).

104543121 is an equidigital number, since it uses as much as digits as its factorization.

104543121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34847710.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 104543121 is about 10224.6330496502. The cubic root of 104543121 is about 471.0841443421.

Adding to 104543121 its reverse (121345401), we get a palindrome (225888522).

The spelling of 104543121 in words is "one hundred four million, five hundred forty-three thousand, one hundred twenty-one".