123716319 has 16 divisors (see below), whose sum is σ = 172200960. Its totient is φ = 78914880.

The previous prime is 123716317. The next prime is 123716347. The reversal of 123716319 is 913617321.

It is not a de Polignac number, because 123716319 - 2¹ = 123716317 is a prime.

It is a super-2 number, since 2×123716319² = 30611455173819522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123716319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123716317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 804 + ... + 15750.

It is an arithmetic number, because the mean of its divisors is an integer number (10762560).

Almost surely, 2^123716319 is an apocalyptic number.

123716319 is a deficient number, since it is larger than the sum of its proper divisors (48484641).

123716319 is a wasteful number, since it uses less digits than its factorization.

123716319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15070.

The product of its digits is 6804, while the sum is 33.

The square root of 123716319 is about 11122.7837792524. The cubic root of 123716319 is about 498.2825327002.

The spelling of 123716319 in words is "one hundred twenty-three million, seven hundred sixteen thousand, three hundred nineteen".