123173871 has 16 divisors (see below), whose sum is σ = 166699008. Its totient is φ = 80892000.

The previous prime is 123173807. The next prime is 123173873. The reversal of 123173871 is 178371321.

It is not a de Polignac number, because 123173871 - 2⁶ = 123173807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123173873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56461 + ... + 58601.

It is an arithmetic number, because the mean of its divisors is an integer number (10418688).

Almost surely, 2^123173871 is an apocalyptic number.

123173871 is a deficient number, since it is larger than the sum of its proper divisors (43525137).

123173871 is a wasteful number, since it uses less digits than its factorization.

123173871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422.

The product of its digits is 7056, while the sum is 33.

The square root of 123173871 is about 11098.3724482466. The cubic root of 123173871 is about 497.5532072753.

The spelling of 123173871 in words is "one hundred twenty-three million, one hundred seventy-three thousand, eight hundred seventy-one".