13731072735245 has 8 divisors (see below), whose sum is σ = 16477606690584. Its totient is φ = 10984645249344.

The previous prime is 13731072735209. The next prime is 13731072735277. The reversal of 13731072735245 is 54253727013731.

13731072735245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2788910020009 + 10942162715236 = 1670003^2 + 3307894^2 .

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 13731072735245 - 2¹⁶ = 13731072669709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13731072735193 and 13731072735202.

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, 26333354 + ... + 26849723.

It is an arithmetic number, because the mean of its divisors is an integer number (2059700836323).

Almost surely, 2^{13731072735245} is an apocalyptic number.

It is an amenable number.

13731072735245 is a deficient number, since it is larger than the sum of its proper divisors (2746533955339).

13731072735245 is an equidigital number, since it uses as much as digits as its factorization.

13731072735245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53234719.

The product of its (nonzero) digits is 3704400, while the sum is 50.

Adding to 13731072735245 its reverse (54253727013731), we get a palindrome (67984799748976).

The spelling of 13731072735245 in words is "thirteen trillion, seven hundred thirty-one billion, seventy-two million, seven hundred thirty-five thousand, two hundred forty-five".