13219105481 has 4 divisors (see below), whose sum is σ = 13221829764. Its totient is φ = 13216381200.

The previous prime is 13219105469. The next prime is 13219105489. The reversal of 13219105481 is 18450191231.

It is a happy number.

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 9098107456 + 4120998025 = 95384^2 + 64195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13219105481 is a prime.

It is a super-2 number, since 2×13219105481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13219105489) 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, 1354850 + ... + 1364571.

It is an arithmetic number, because the mean of its divisors is an integer number (3305457441).

Almost surely, 2^13219105481 is an apocalyptic number.

It is an amenable number.

13219105481 is a deficient number, since it is larger than the sum of its proper divisors (2724283).

13219105481 is an equidigital number, since it uses as much as digits as its factorization.

13219105481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724282.

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 13219105481 in words is "thirteen billion, two hundred nineteen million, one hundred five thousand, four hundred eighty-one".