123916 has 12 divisors (see below), whose sum is σ = 233632. Its totient is φ = 57168.

The previous prime is 123911. The next prime is 123923. The reversal of 123916 is 619321.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123911) by changing a digit.

123916 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140 + ... + 1243.

2¹²³⁹¹⁶ is an apocalyptic number.

It is an amenable number.

123916 is a deficient number, since it is larger than the sum of its proper divisors (109716).

123916 is a wasteful number, since it uses less digits than its factorization.

123916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400 (or 2398 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

The square root of 123916 is about 352.0170450419. The cubic root of 123916 is about 49.8550468444.

The spelling of 123916 in words is "one hundred twenty-three thousand, nine hundred sixteen".