123680453 has 24 divisors (see below), whose sum is σ = 142933248. Its totient is φ = 106721472.

The previous prime is 123680441. The next prime is 123680497. The reversal of 123680453 is 354086321.

It is not a de Polignac number, because 123680453 - 2⁸ = 123680197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123680413) 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 23 ways as a sum of consecutive naturals, for example, 182351 + ... + 183027.

It is an arithmetic number, because the mean of its divisors is an integer number (5955552).

Almost surely, 2^123680453 is an apocalyptic number.

123680453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123680453 is a deficient number, since it is larger than the sum of its proper divisors (19252795).

123680453 is a wasteful number, since it uses less digits than its factorization.

123680453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 123680453 is about 11121.1713861445. The cubic root of 123680453 is about 498.2343764861.

The spelling of 123680453 in words is "one hundred twenty-three million, six hundred eighty thousand, four hundred fifty-three".