13935271145 has 4 divisors (see below), whose sum is σ = 16722325380. Its totient is φ = 11148216912.

The previous prime is 13935271109. The next prime is 13935271193. The reversal of 13935271145 is 54117253931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54117253931 = 13 ⋅4162865687.

It can be written as a sum of positive squares in 2 ways, for example, as 1909078249 + 12026192896 = 43693^2 + 109664^2 .

It is a cyclic number.

It is not a de Polignac number, because 13935271145 - 2¹⁴ = 13935254761 is a prime.

It is a super-2 number, since 2×13935271145² (a number of 21 digits) contains 22 as substring.

It is a Curzon 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, 1393527110 + ... + 1393527119.

It is an arithmetic number, because the mean of its divisors is an integer number (4180581345).

Almost surely, 2^13935271145 is an apocalyptic number.

It is an amenable number.

13935271145 is a deficient number, since it is larger than the sum of its proper divisors (2787054235).

13935271145 is an equidigital number, since it uses as much as digits as its factorization.

13935271145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787054234.

The product of its digits is 113400, while the sum is 41.

The spelling of 13935271145 in words is "thirteen billion, nine hundred thirty-five million, two hundred seventy-one thousand, one hundred forty-five".