100665533 has 8 divisors (see below), whose sum is σ = 102647160. Its totient is φ = 98703360.

The previous prime is 100665529. The next prime is 100665559. The reversal of 100665533 is 335566001.

It can be written as a sum of positive squares in 4 ways, for example, as 18164644 + 82500889 = 4262^2 + 9083^2 .

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 100665533 - 2² = 100665529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100665496 and 100665505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100665563) 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, 5813 + ... + 15333.

It is an arithmetic number, because the mean of its divisors is an integer number (12830895).

Almost surely, 2^100665533 is an apocalyptic number.

It is an amenable number.

100665533 is a deficient number, since it is larger than the sum of its proper divisors (1981627).

100665533 is an equidigital number, since it uses as much as digits as its factorization.

100665533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9727.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 100665533 is about 10033.2214667075. The cubic root of 100665533 is about 465.1863175969.

The spelling of 100665533 in words is "one hundred million, six hundred sixty-five thousand, five hundred thirty-three".