140105143440245 has 8 divisors (see below), whose sum is σ = 172670122726584. Its totient is φ = 109054814353344.

The previous prime is 140105143440179. The next prime is 140105143440253. The reversal of 140105143440245 is 542044341501041.

It can be written as a sum of positive squares in 4 ways, for example, as 42453551578321 + 97651591861924 = 6515639^2 + 9881882^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 140105143440245 - 2¹⁶ = 140105143374709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140105143440199 and 140105143440208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378662549654 + ... + 378662550023.

It is an arithmetic number, because the mean of its divisors is an integer number (21583765340823).

Almost surely, 2^{140105143440245} is an apocalyptic number.

It is an amenable number.

140105143440245 is a deficient number, since it is larger than the sum of its proper divisors (32564979286339).

140105143440245 is an equidigital number, since it uses as much as digits as its factorization.

140105143440245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757325099719.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 140105143440245 its reverse (542044341501041), we get a palindrome (682149484941286).

The spelling of 140105143440245 in words is "one hundred forty trillion, one hundred five billion, one hundred forty-three million, four hundred forty thousand, two hundred forty-five".