100540001005 has 4 divisors (see below), whose sum is σ = 120648001212. Its totient is φ = 80432000800.

The previous prime is 100540000999. The next prime is 100540001011. The reversal of 100540001005 is 500100045001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (100540000999) and next prime (100540001011).

It can be written as a sum of positive squares in 2 ways, for example, as 72198615204 + 28341385801 = 268698^2 + 168349^2 .

It is not a de Polignac number, because 100540001005 - 2⁵ = 100540000973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100540001005.

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, 10054000096 + ... + 10054000105.

It is an arithmetic number, because the mean of its divisors is an integer number (30162000303).

Almost surely, 2^100540001005 is an apocalyptic number.

It is an amenable number.

100540001005 is a deficient number, since it is larger than the sum of its proper divisors (20108000207).

100540001005 is an equidigital number, since it uses as much as digits as its factorization.

100540001005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20108000206.

The product of its (nonzero) digits is 100, while the sum is 16.

Adding to 100540001005 its reverse (500100045001), we get a palindrome (600640046006).

The spelling of 100540001005 in words is "one hundred billion, five hundred forty million, one thousand, five".