123609601 has 8 divisors (see below), whose sum is σ = 130996224. Its totient is φ = 116235840.

The previous prime is 123609599. The next prime is 123609631. The reversal of 123609601 is 106906321.

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 123609601 - 2¹ = 123609599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123609601.

It is not an unprimeable number, because it can be changed into a prime (123609631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22536 + ... + 27478.

It is an arithmetic number, because the mean of its divisors is an integer number (16374528).

Almost surely, 2^123609601 is an apocalyptic number.

It is an amenable number.

123609601 is a deficient number, since it is larger than the sum of its proper divisors (7386623).

123609601 is a wasteful number, since it uses less digits than its factorization.

123609601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 123609601 is about 11117.9854739966. The cubic root of 123609601 is about 498.1392182398.

The spelling of 123609601 in words is "one hundred twenty-three million, six hundred nine thousand, six hundred one".