123104501 has 16 divisors (see below), whose sum is σ = 134660400. Its totient is φ = 112529664.

The previous prime is 123104489. The next prime is 123104537. The reversal of 123104501 is 105401321.

It can be written as a sum of positive squares in 8 ways, for example, as 49984900 + 73119601 = 7070^2 + 8551^2 .

It is not a de Polignac number, because 123104501 - 2¹⁴ = 123088117 is a prime.

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 123104501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123104561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300785 + ... + 301193.

It is an arithmetic number, because the mean of its divisors is an integer number (8416275).

Almost surely, 2^123104501 is an apocalyptic number.

It is an amenable number.

123104501 is a deficient number, since it is larger than the sum of its proper divisors (11555899).

123104501 is an equidigital number, since it uses as much as digits as its factorization.

123104501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 123104501 is about 11095.2467750835. The cubic root of 123104501 is about 497.4597844651.

Adding to 123104501 its reverse (105401321), we get a palindrome (228505822).

The spelling of 123104501 in words is "one hundred twenty-three million, one hundred four thousand, five hundred one".