100506603 has 8 divisors (see below), whose sum is σ = 136537488. Its totient is φ = 65740064.

The previous prime is 100506577. The next prime is 100506613. The reversal of 100506603 is 306605001.

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 100506603 - 2⁸ = 100506347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100506603.

It is not an unprimeable number, because it can be changed into a prime (100506613) 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, 315900 + ... + 316217.

It is an arithmetic number, because the mean of its divisors is an integer number (17067186).

Almost surely, 2^100506603 is an apocalyptic number.

100506603 is a deficient number, since it is larger than the sum of its proper divisors (36030885).

100506603 is an equidigital number, since it uses as much as digits as its factorization.

100506603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632173.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 100506603 is about 10025.2981501799. The cubic root of 100506603 is about 464.9413777411.

It can be divided in two parts, 10050 and 6603, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 100506603 in words is "one hundred million, five hundred six thousand, six hundred three".