31175544819145 has 8 divisors (see below), whose sum is σ = 37477818335304. Its totient is φ = 24895659487104.

The previous prime is 31175544819137. The next prime is 31175544819229. The reversal of 31175544819145 is 54191844557113.

31175544819145 is digitally balanced in base 6, 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 3095009821696 + 28080534997449 = 1759264^2 + 5299107^2 .

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 31175544819145 - 2³ = 31175544819137 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 31175544819145.

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, 5597042964 + ... + 5597048533.

It is an arithmetic number, because the mean of its divisors is an integer number (4684727291913).

Almost surely, 2^{31175544819145} is an apocalyptic number.

It is an amenable number.

31175544819145 is a deficient number, since it is larger than the sum of its proper divisors (6302273516159).

31175544819145 is a wasteful number, since it uses less digits than its factorization.

31175544819145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11194092059.

The product of its digits is 12096000, while the sum is 58.

The spelling of 31175544819145 in words is "thirty-one trillion, one hundred seventy-five billion, five hundred forty-four million, eight hundred nineteen thousand, one hundred forty-five".