123516601 has 16 divisors (see below), whose sum is σ = 139265280. Its totient is φ = 108694080.

The previous prime is 123516583. The next prime is 123516629. The reversal of 123516601 is 106615321.

It is a cyclic number.

It is not a de Polignac number, because 123516601 - 2⁹ = 123516089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123516661) 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 15 ways as a sum of consecutive naturals, for example, 130791 + ... + 131731.

It is an arithmetic number, because the mean of its divisors is an integer number (8704080).

Almost surely, 2^123516601 is an apocalyptic number.

It is an amenable number.

123516601 is a deficient number, since it is larger than the sum of its proper divisors (15748679).

123516601 is a wasteful number, since it uses less digits than its factorization.

123516601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 123516601 is about 11113.8022746493. The cubic root of 123516601 is about 498.0142587704.

The spelling of 123516601 in words is "one hundred twenty-three million, five hundred sixteen thousand, six hundred one".