123141500 has 48 divisors (see below), whose sum is σ = 271820640. Its totient is φ = 48729600.

The previous prime is 123141481. The next prime is 123141521. The reversal of 123141500 is 5141321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47231 + ... + 49769.

It is an arithmetic number, because the mean of its divisors is an integer number (5662930).

Almost surely, 2^123141500 is an apocalyptic number.

123141500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123141500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135910320).

123141500 is an abundant number, since it is smaller than the sum of its proper divisors (148679140).

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

123141500 is a wasteful number, since it uses less digits than its factorization.

123141500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655 (or 2643 counting only the distinct ones).

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

The square root of 123141500 is about 11096.9139854286. The cubic root of 123141500 is about 497.5096165746.

Adding to 123141500 its reverse (5141321), we get a palindrome (128282821).

The spelling of 123141500 in words is "one hundred twenty-three million, one hundred forty-one thousand, five hundred".