123172116 has 12 divisors (see below), whose sum is σ = 287401632. Its totient is φ = 41057368.

The previous prime is 123172103. The next prime is 123172121. The reversal of 123172116 is 611271321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5132160 + ... + 5132183.

It is an arithmetic number, because the mean of its divisors is an integer number (23950136).

Almost surely, 2^123172116 is an apocalyptic number.

It is an amenable number.

123172116 is an abundant number, since it is smaller than the sum of its proper divisors (164229516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123172116 is a wasteful number, since it uses less digits than its factorization.

123172116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10264350 (or 10264348 counting only the distinct ones).

The product of its digits is 504, while the sum is 24.

The square root of 123172116 is about 11098.2933823178. The cubic root of 123172116 is about 497.5508441929.

The spelling of 123172116 in words is "one hundred twenty-three million, one hundred seventy-two thousand, one hundred sixteen".