123718085 has 8 divisors (see below), whose sum is σ = 148521600. Its totient is φ = 98934544.

The previous prime is 123718069. The next prime is 123718087. The reversal of 123718085 is 580817321.

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 123718085 - 2⁴ = 123718069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123718087) 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 7 ways as a sum of consecutive naturals, for example, 20216 + ... + 25614.

It is an arithmetic number, because the mean of its divisors is an integer number (18565200).

Almost surely, 2^123718085 is an apocalyptic number.

It is an amenable number.

123718085 is a deficient number, since it is larger than the sum of its proper divisors (24803515).

123718085 is an equidigital number, since it uses as much as digits as its factorization.

123718085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9987.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 123718085 is about 11122.8631655703. The cubic root of 123718085 is about 498.2849036155.

The spelling of 123718085 in words is "one hundred twenty-three million, seven hundred eighteen thousand, eighty-five".