123192216 has 48 divisors (see below), whose sum is σ = 381310800. Its totient is φ = 35197632.

The previous prime is 123192197. The next prime is 123192221. The reversal of 123192216 is 612291321.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 123192216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121711 + ... + 122718.

It is an arithmetic number, because the mean of its divisors is an integer number (7943975).

Almost surely, 2^123192216 is an apocalyptic number.

It is an amenable number.

123192216 is an abundant number, since it is smaller than the sum of its proper divisors (258118584).

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

123192216 is a wasteful number, since it uses less digits than its factorization.

123192216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244448 (or 244441 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 123192216 is about 11099.1988900100. The cubic root of 123192216 is about 497.5779072121.

It can be divided in two parts, 12319 and 2216, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 123192216 in words is "one hundred twenty-three million, one hundred ninety-two thousand, two hundred sixteen".