123366005 has 16 divisors (see below), whose sum is σ = 171333120. Its totient is φ = 83521152.

The previous prime is 123365999. The next prime is 123366013. The reversal of 123366005 is 500663321.

It is a cyclic number.

It is not a de Polignac number, because 123366005 - 2¹⁶ = 123300469 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19544 + ... + 25073.

It is an arithmetic number, because the mean of its divisors is an integer number (10708320).

Almost surely, 2^123366005 is an apocalyptic number.

It is an amenable number.

123366005 is a deficient number, since it is larger than the sum of its proper divisors (47967115).

123366005 is an equidigital number, since it uses as much as digits as its factorization.

123366005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44708.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 123366005 is about 11107.0250292326. The cubic root of 123366005 is about 497.8117773337.

The spelling of 123366005 in words is "one hundred twenty-three million, three hundred sixty-six thousand, five".