123155716 has 12 divisors (see below), whose sum is σ = 217537488. Its totient is φ = 61002152.

The previous prime is 123155713. The next prime is 123155717. The reversal of 123155716 is 617551321.

It is not an unprimeable number, because it can be changed into a prime (123155713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143446 + ... + 144301.

It is an arithmetic number, because the mean of its divisors is an integer number (18128124).

Almost surely, 2^123155716 is an apocalyptic number.

It is an amenable number.

123155716 is a deficient number, since it is larger than the sum of its proper divisors (94381772).

123155716 is a wasteful number, since it uses less digits than its factorization.

123155716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287858 (or 287856 counting only the distinct ones).

The product of its digits is 6300, while the sum is 31.

The square root of 123155716 is about 11097.5545053854. The cubic root of 123155716 is about 497.5287607423.

The spelling of 123155716 in words is "one hundred twenty-three million, one hundred fifty-five thousand, seven hundred sixteen".