123104617 has 4 divisors (see below), whose sum is σ = 123549316. Its totient is φ = 122659920.

The previous prime is 123104593. The next prime is 123104651. The reversal of 123104617 is 716401321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 716401321 = 2857 ⋅250753.

It can be written as a sum of positive squares in 2 ways, for example, as 52359696 + 70744921 = 7236^2 + 8411^2 .

It is a cyclic number.

It is not a de Polignac number, because 123104617 - 2⁷ = 123104489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123104591 and 123104600.

It is not an unprimeable number, because it can be changed into a prime (123104117) 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, 221934 + ... + 222487.

It is an arithmetic number, because the mean of its divisors is an integer number (30887329).

Almost surely, 2^123104617 is an apocalyptic number.

It is an amenable number.

123104617 is a deficient number, since it is larger than the sum of its proper divisors (444699).

123104617 is an equidigital number, since it uses as much as digits as its factorization.

123104617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444698.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 123104617 is about 11095.2520025460. The cubic root of 123104617 is about 497.4599407153.

Adding to 123104617 its reverse (716401321), we get a palindrome (839505938).

The spelling of 123104617 in words is "one hundred twenty-three million, one hundred four thousand, six hundred seventeen".