140042215232105 has 4 divisors (see below), whose sum is σ = 168050658278532. Its totient is φ = 112033772185680.

The previous prime is 140042215232089. The next prime is 140042215232201. The reversal of 140042215232105 is 501232512240041.

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 100611752752681 + 39430462479424 = 10030541^2 + 6279368^2 .

It is not a de Polignac number, because 140042215232105 - 2⁴ = 140042215232089 is a prime.

It is a super-2 number, since 2×140042215232105² (a number of 29 digits) contains 22 as substring.

It is a Duffinian 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, 14004221523206 + ... + 14004221523215.

It is an arithmetic number, because the mean of its divisors is an integer number (42012664569633).

Almost surely, 2^{140042215232105} is an apocalyptic number.

It is an amenable number.

140042215232105 is a deficient number, since it is larger than the sum of its proper divisors (28008443046427).

140042215232105 is an equidigital number, since it uses as much as digits as its factorization.

140042215232105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28008443046426.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 140042215232105 its reverse (501232512240041), we get a palindrome (641274727472146).

The spelling of 140042215232105 in words is "one hundred forty trillion, forty-two billion, two hundred fifteen million, two hundred thirty-two thousand, one hundred five".