123668605 has 8 divisors (see below), whose sum is σ = 148722912. Its totient is φ = 98721168.

The previous prime is 123668603. The next prime is 123668617. The reversal of 123668605 is 506866321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123668605 - 2¹ = 123668603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123668603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24147 + ... + 28816.

It is an arithmetic number, because the mean of its divisors is an integer number (18590364).

Almost surely, 2^123668605 is an apocalyptic number.

It is an amenable number.

123668605 is a deficient number, since it is larger than the sum of its proper divisors (25054307).

123668605 is an equidigital number, since it uses as much as digits as its factorization.

123668605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53435.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 123668605 is about 11120.6386956865. The cubic root of 123668605 is about 498.2184664824.

The spelling of 123668605 in words is "one hundred twenty-three million, six hundred sixty-eight thousand, six hundred five".