440142112105 has 4 divisors (see below), whose sum is σ = 528170534532. Its totient is φ = 352113689680.

The previous prime is 440142112037. The next prime is 440142112117. The reversal of 440142112105 is 501211241044.

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 317801660121 + 122340451984 = 563739^2 + 349772^2 .

It is not a de Polignac number, because 440142112105 - 2⁹ = 440142111593 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 440142112105.

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, 44014211206 + ... + 44014211215.

It is an arithmetic number, because the mean of its divisors is an integer number (132042633633).

Almost surely, 2^440142112105 is an apocalyptic number.

It is an amenable number.

440142112105 is a deficient number, since it is larger than the sum of its proper divisors (88028422427).

440142112105 is an equidigital number, since it uses as much as digits as its factorization.

440142112105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88028422426.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 440142112105 its reverse (501211241044), we get a palindrome (941353353149).

The spelling of 440142112105 in words is "four hundred forty billion, one hundred forty-two million, one hundred twelve thousand, one hundred five".