123605603 has 8 divisors (see below), whose sum is σ = 136358640. Its totient is φ = 111105280.

The previous prime is 123605597. The next prime is 123605609. The reversal of 123605603 is 306506321.

It is an interprime number because it is at equal distance from previous prime (123605597) and next prime (123605609).

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

It is a de Polignac number, because none of the positive numbers 2^k-123605603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123605609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62150 + ... + 64107.

It is an arithmetic number, because the mean of its divisors is an integer number (17044830).

Almost surely, 2^123605603 is an apocalyptic number.

123605603 is a deficient number, since it is larger than the sum of its proper divisors (12753037).

123605603 is a wasteful number, since it uses less digits than its factorization.

123605603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126357.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 123605603 is about 11117.8056737829. The cubic root of 123605603 is about 498.1338476158.

The spelling of 123605603 in words is "one hundred twenty-three million, six hundred five thousand, six hundred three".