13465545243 has 4 divisors (see below), whose sum is σ = 17954060328. Its totient is φ = 8977030160.

The previous prime is 13465545239. The next prime is 13465545389. The reversal of 13465545243 is 34254556431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13465545243 - 2² = 13465545239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13465545195 and 13465545204.

It is not an unprimeable number, because it can be changed into a prime (13465545943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244257538 + ... + 2244257543.

It is an arithmetic number, because the mean of its divisors is an integer number (4488515082).

Almost surely, 2^13465545243 is an apocalyptic number.

13465545243 is a deficient number, since it is larger than the sum of its proper divisors (4488515085).

13465545243 is an equidigital number, since it uses as much as digits as its factorization.

13465545243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488515084.

The product of its digits is 864000, while the sum is 42.

The spelling of 13465545243 in words is "thirteen billion, four hundred sixty-five million, five hundred forty-five thousand, two hundred forty-three".