13145254345 has 4 divisors (see below), whose sum is σ = 15774305220. Its totient is φ = 10516203472.

The previous prime is 13145254307. The next prime is 13145254399. The reversal of 13145254345 is 54345254131.

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 9117194256 + 4028060089 = 95484^2 + 63467^2 .

It is a cyclic number.

It is not a de Polignac number, because 13145254345 - 2⁹ = 13145253833 is a prime.

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, 1314525430 + ... + 1314525439.

It is an arithmetic number, because the mean of its divisors is an integer number (3943576305).

Almost surely, 2^13145254345 is an apocalyptic number.

It is an amenable number.

13145254345 is a deficient number, since it is larger than the sum of its proper divisors (2629050875).

13145254345 is an equidigital number, since it uses as much as digits as its factorization.

13145254345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629050874.

The product of its digits is 144000, while the sum is 37.

The spelling of 13145254345 in words is "thirteen billion, one hundred forty-five million, two hundred fifty-four thousand, three hundred forty-five".