123104500 has 24 divisors (see below), whose sum is σ = 268861320. Its totient is φ = 49241600.

The previous prime is 123104489. The next prime is 123104537. The reversal of 123104500 is 5401321.

It can be written as a sum of positive squares in 4 ways, for example, as 18696976 + 104407524 = 4324^2 + 10218^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122605 + ... + 123604.

It is an arithmetic number, because the mean of its divisors is an integer number (11202555).

Almost surely, 2^123104500 is an apocalyptic number.

123104500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123104500 is an abundant number, since it is smaller than the sum of its proper divisors (145756820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123104500 is a wasteful number, since it uses less digits than its factorization.

123104500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246228 (or 246216 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 123104500 is about 11095.2467300191. The cubic root of 123104500 is about 497.4597831181.

Adding to 123104500 its reverse (5401321), we get a palindrome (128505821).

The spelling of 123104500 in words is "one hundred twenty-three million, one hundred four thousand, five hundred".