123654110880169 has 3 divisors (see below), whose sum is σ = 123654122000157. Its totient is φ = 123654099760182.

The previous prime is 123654110880151. The next prime is 123654110880193. The reversal of 123654110880169 is 961088011456321.

The square root of 123654110880169 is 11119987.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 123654110880169 - 2¹⁷ = 123654110749097 is a prime.

It is a super-3 number, since 3×123654110880169³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123654110880119) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5559994 + ... + 16679980.

It is an arithmetic number, because the mean of its divisors is an integer number (41218040666719).

Almost surely, 2^{123654110880169} is an apocalyptic number.

123654110880169 is the 11119987-th square number.

123654110880169 is the 5559994-th centered octagonal number.

It is an amenable number.

123654110880169 is a deficient number, since it is larger than the sum of its proper divisors (11119988).

123654110880169 is an frugal number, since it uses more digits than its factorization.

123654110880169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22239974 (or 11119987 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 123654110880169 in words is "one hundred twenty-three trillion, six hundred fifty-four billion, one hundred ten million, eight hundred eighty thousand, one hundred sixty-nine".