100013365 has 4 divisors (see below), whose sum is σ = 120016044. Its totient is φ = 80010688.

The previous prime is 100013357. The next prime is 100013371. The reversal of 100013365 is 563310001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563310001 = 229 ⋅2459869.

It can be written as a sum of positive squares in 2 ways, for example, as 33802596 + 66210769 = 5814^2 + 8137^2 .

It is a cyclic number.

It is not a de Polignac number, because 100013365 - 2³ = 100013357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10001332 + ... + 10001341.

It is an arithmetic number, because the mean of its divisors is an integer number (30004011).

Almost surely, 2^100013365 is an apocalyptic number.

It is an amenable number.

100013365 is a deficient number, since it is larger than the sum of its proper divisors (20002679).

100013365 is an equidigital number, since it uses as much as digits as its factorization.

100013365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20002678.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 100013365 is about 10000.6682276736. The cubic root of 100013365 is about 464.1795607184.

Adding to 100013365 its reverse (563310001), we get a palindrome (663323366).

It can be divided in two parts, 10001 and 3365, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 100013365 in words is "one hundred million, thirteen thousand, three hundred sixty-five".