13145215439 has 8 divisors (see below), whose sum is σ = 14398410960. Its totient is φ = 11945347456.

The previous prime is 13145215429. The next prime is 13145215477. The reversal of 13145215439 is 93451254131.

It is a happy number.

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 13145215439 - 2¹⁶ = 13145149903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145215429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13331369 + ... + 13332354.

It is an arithmetic number, because the mean of its divisors is an integer number (1799801370).

Almost surely, 2^13145215439 is an apocalyptic number.

13145215439 is a deficient number, since it is larger than the sum of its proper divisors (1253195521).

13145215439 is a wasteful number, since it uses less digits than its factorization.

13145215439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26663769.

The product of its digits is 64800, while the sum is 38.

The spelling of 13145215439 in words is "thirteen billion, one hundred forty-five million, two hundred fifteen thousand, four hundred thirty-nine".