100663285 has 8 divisors (see below), whose sum is σ = 120853080. Its totient is φ = 80492544.

The previous prime is 100663261. The next prime is 100663291. The reversal of 100663285 is 582366001.

100663285 is nontrivially palindromic in base 4 and base 16.

It can be written as a sum of positive squares in 4 ways, for example, as 21399876 + 79263409 = 4626^2 + 8903^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100663285 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12669 + ... + 19021.

It is an arithmetic number, because the mean of its divisors is an integer number (15106635).

Almost surely, 2^100663285 is an apocalyptic number.

It is an amenable number.

100663285 is a deficient number, since it is larger than the sum of its proper divisors (20189795).

100663285 is an equidigital number, since it uses as much as digits as its factorization.

100663285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9527.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 100663285 is about 10033.1094382549. The cubic root of 100663285 is about 465.1828548207.

The spelling of 100663285 in words is "one hundred million, six hundred sixty-three thousand, two hundred eighty-five".