140352540305 has 4 divisors (see below), whose sum is σ = 168423048372. Its totient is φ = 112282032240.

The previous prime is 140352540299. The next prime is 140352540313. The reversal of 140352540305 is 503045253041.

It is a happy number.

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 41841929809 + 98510610496 = 204553^2 + 313864^2 .

It is not a de Polignac number, because 140352540305 - 2²⁶ = 140285431441 is a prime.

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, 14035254026 + ... + 14035254035.

It is an arithmetic number, because the mean of its divisors is an integer number (42105762093).

Almost surely, 2^140352540305 is an apocalyptic number.

It is an amenable number.

140352540305 is a deficient number, since it is larger than the sum of its proper divisors (28070508067).

140352540305 is an equidigital number, since it uses as much as digits as its factorization.

140352540305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28070508066.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 140352540305 its reverse (503045253041), we get a palindrome (643397793346).

The spelling of 140352540305 in words is "one hundred forty billion, three hundred fifty-two million, five hundred forty thousand, three hundred five".