123530843 has 4 divisors (see below), whose sum is σ = 124918920. Its totient is φ = 122142768.

The previous prime is 123530839. The next prime is 123530867. The reversal of 123530843 is 348035321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123530843 - 2² = 123530839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123530243) 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, 693905 + ... + 694082.

It is an arithmetic number, because the mean of its divisors is an integer number (31229730).

Almost surely, 2^123530843 is an apocalyptic number.

123530843 is a deficient number, since it is larger than the sum of its proper divisors (1388077).

123530843 is an equidigital number, since it uses as much as digits as its factorization.

123530843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388076.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 123530843 is about 11114.4429909915. The cubic root of 123530843 is about 498.0333991030.

The spelling of 123530843 in words is "one hundred twenty-three million, five hundred thirty thousand, eight hundred forty-three".