100036665 has 12 divisors (see below), whose sum is σ = 173396964. Its totient is φ = 53352864.

The previous prime is 100036661. The next prime is 100036667. The reversal of 100036665 is 566630001.

It can be written as a sum of positive squares in 2 ways, for example, as 41835024 + 58201641 = 6468^2 + 7629^2 .

It is not a de Polignac number, because 100036665 - 2² = 100036661 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100036661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1111474 + ... + 1111563.

It is an arithmetic number, because the mean of its divisors is an integer number (14449747).

Almost surely, 2^100036665 is an apocalyptic number.

100036665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100036665 is a deficient number, since it is larger than the sum of its proper divisors (73360299).

100036665 is a wasteful number, since it uses less digits than its factorization.

100036665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223048 (or 2223045 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 100036665 is about 10001.8330819905. The cubic root of 100036665 is about 464.2156043811.

Adding to 100036665 its reverse (566630001), we get a palindrome (666666666).

The spelling of 100036665 in words is "one hundred million, thirty-six thousand, six hundred sixty-five".