104405121 has 12 divisors (see below), whose sum is σ = 151524880. Its totient is φ = 69272280.

The previous prime is 104405113. The next prime is 104405129. The reversal of 104405121 is 121504401.

It is an interprime number because it is at equal distance from previous prime (104405113) and next prime (104405129).

It is not a de Polignac number, because 104405121 - 2³ = 104405113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104405094 and 104405103.

It is not an unprimeable number, because it can be changed into a prime (104405129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25591 + ... + 29388.

Almost surely, 2^104405121 is an apocalyptic number.

It is an amenable number.

104405121 is a deficient number, since it is larger than the sum of its proper divisors (47119759).

104405121 is a wasteful number, since it uses less digits than its factorization.

104405121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55196 (or 55193 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 104405121 is about 10217.8824127115. The cubic root of 104405121 is about 470.8767714190.

Adding to 104405121 its reverse (121504401), we get a palindrome (225909522).

The spelling of 104405121 in words is "one hundred four million, four hundred five thousand, one hundred twenty-one".