13145831085 has 8 divisors (see below), whose sum is σ = 21033329760. Its totient is φ = 7011109904.

The previous prime is 13145830963. The next prime is 13145831089. The reversal of 13145831085 is 58013854131.

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 13145831085 - 2¹⁴ = 13145814701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145831089) 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, 438194355 + ... + 438194384.

It is an arithmetic number, because the mean of its divisors is an integer number (2629166220).

Almost surely, 2^13145831085 is an apocalyptic number.

13145831085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13145831085 is a deficient number, since it is larger than the sum of its proper divisors (7887498675).

13145831085 is an equidigital number, since it uses as much as digits as its factorization.

13145831085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876388747.

The product of its (nonzero) digits is 57600, while the sum is 39.

The spelling of 13145831085 in words is "thirteen billion, one hundred forty-five million, eight hundred thirty-one thousand, eighty-five".