40031105 has 4 divisors (see below), whose sum is σ = 48037332. Its totient is φ = 32024880.

The previous prime is 40031071. The next prime is 40031113. The reversal of 40031105 is 50113004.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22733824 + 17297281 = 4768^2 + 4159^2 .

It is not a de Polignac number, because 40031105 - 2¹⁸ = 39768961 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 40031105.

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 3 ways as a sum of consecutive naturals, for example, 4003106 + ... + 4003115.

It is an arithmetic number, because the mean of its divisors is an integer number (12009333).

Almost surely, 2^40031105 is an apocalyptic number.

It is an amenable number.

40031105 is a deficient number, since it is larger than the sum of its proper divisors (8006227).

40031105 is an equidigital number, since it uses as much as digits as its factorization.

40031105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8006226.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 40031105 is about 6327.0139086302. The cubic root of 40031105 is about 342.0838143700.

Adding to 40031105 its reverse (50113004), we get a palindrome (90144109).

The spelling of 40031105 in words is "forty million, thirty-one thousand, one hundred five".