123104 has 12 divisors (see below), whose sum is σ = 242424. Its totient is φ = 61536.
The previous prime is 123091. The next prime is 123113. The reversal of 123104 is 401321.
It is a happy number.
It is a zygodrome in base 2.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1892 + ... + 1955.
It is an arithmetic number, because the mean of its divisors is an integer number (20202).
2123104 is an apocalyptic number.
It is an amenable number.
123104 is a deficient number, since it is larger than the sum of its proper divisors (119320).
123104 is an equidigital number, since it uses as much as digits as its factorization.
123104 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3857 (or 3849 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 123104 is about 350.8617961534. The cubic root of 123104 is about 49.7459109625.
Adding to 123104 its reverse (401321), we get a palindrome (524425).
The spelling of 123104 in words is "one hundred twenty-three thousand, one hundred four", and thus it is an iban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.081 sec. • engine limits •