123819216 has 40 divisors (see below), whose sum is σ = 324648864. Its totient is φ = 40656000.

The previous prime is 123819191. The next prime is 123819217. The reversal of 123819216 is 612918321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123819217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16035 + ... + 22466.

Almost surely, 2^123819216 is an apocalyptic number.

123819216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123819216 is an abundant number, since it is smaller than the sum of its proper divisors (200829648).

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

123819216 is a wasteful number, since it uses less digits than its factorization.

123819216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38579 (or 38573 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 123819216 is about 11127.4083235945. The cubic root of 123819216 is about 498.4206378162.

The spelling of 123819216 in words is "one hundred twenty-three million, eight hundred nineteen thousand, two hundred sixteen".