40100105 has 8 divisors (see below), whose sum is σ = 48293064. Its totient is φ = 31964800.

The previous prime is 40100087. The next prime is 40100113. The reversal of 40100105 is 50100104.

It can be written as a sum of positive squares in 4 ways, for example, as 2999824 + 37100281 = 1732^2 + 6091^2 .

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

It is not a de Polignac number, because 40100105 - 2⁶ = 40100041 is a prime.

It is a super-2 number, since 2×40100105² = 3216036842022050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12866 + ... + 15675.

It is an arithmetic number, because the mean of its divisors is an integer number (6036633).

Almost surely, 2^40100105 is an apocalyptic number.

It is an amenable number.

40100105 is a deficient number, since it is larger than the sum of its proper divisors (8192959).

40100105 is a wasteful number, since it uses less digits than its factorization.

40100105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28827.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 40100105 is about 6332.4643702116. The cubic root of 40100105 is about 342.2802469069.

Adding to 40100105 its reverse (50100104), we get a palindrome (90200209).

Subtracting 40100105 from its reverse (50100104), we obtain a palindrome (9999999).

The spelling of 40100105 in words is "forty million, one hundred thousand, one hundred five".