123648016 has 20 divisors (see below), whose sum is σ = 239740732. Its totient is φ = 61779456.

The previous prime is 123648001. The next prime is 123648017. The reversal of 123648016 is 610846321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 112784400 + 10863616 = 10620^2 + 3296^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123648017) 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, 40396 + ... + 43348.

Almost surely, 2^123648016 is an apocalyptic number.

123648016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123648016 is a deficient number, since it is larger than the sum of its proper divisors (116092716).

123648016 is a wasteful number, since it uses less digits than its factorization.

123648016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578 (or 5572 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 123648016 is about 11119.7129459353. The cubic root of 123648016 is about 498.1908162708.

The spelling of 123648016 in words is "one hundred twenty-three million, six hundred forty-eight thousand, sixteen".