140030025505 has 4 divisors (see below), whose sum is σ = 168036030612. Its totient is φ = 112024020400.

The previous prime is 140030025481. The next prime is 140030025523. The reversal of 140030025505 is 505520030041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505520030041 = 13 ⋅38886156157.

It can be written as a sum of positive squares in 2 ways, for example, as 90064811664 + 49965213841 = 300108^2 + 223529^2 .

It is not a de Polignac number, because 140030025505 - 2³¹ = 137882541857 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 140030025505.

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, 14003002546 + ... + 14003002555.

It is an arithmetic number, because the mean of its divisors is an integer number (42009007653).

Almost surely, 2^140030025505 is an apocalyptic number.

It is an amenable number.

140030025505 is a deficient number, since it is larger than the sum of its proper divisors (28006005107).

140030025505 is an equidigital number, since it uses as much as digits as its factorization.

140030025505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28006005106.

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 140030025505 its reverse (505520030041), we get a palindrome (645550055546).

The spelling of 140030025505 in words is "one hundred forty billion, thirty million, twenty-five thousand, five hundred five".