123199663 has 8 divisors (see below), whose sum is σ = 131112432. Its totient is φ = 115360896.

The previous prime is 123199651. The next prime is 123199709. The reversal of 123199663 is 366991321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123199663 - 2⁹ = 123199151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123199633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15045 + ... + 21742.

It is an arithmetic number, because the mean of its divisors is an integer number (16389054).

Almost surely, 2^123199663 is an apocalyptic number.

123199663 is a deficient number, since it is larger than the sum of its proper divisors (7912769).

123199663 is a wasteful number, since it uses less digits than its factorization.

123199663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37001.

The product of its digits is 52488, while the sum is 40.

The square root of 123199663 is about 11099.5343596027. The cubic root of 123199663 is about 497.5879332460.

The spelling of 123199663 in words is "one hundred twenty-three million, one hundred ninety-nine thousand, six hundred sixty-three".