13144981523 has 8 divisors (see below), whose sum is σ = 13369762800. Its totient is φ = 12920266528.

The previous prime is 13144981501. The next prime is 13144981541. The reversal of 13144981523 is 32518944131.

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 13144981523 - 2³² = 8850014227 is a prime.

It is a super-2 number, since 2×13144981523² (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 (13144981123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543533 + ... + 567201.

It is an arithmetic number, because the mean of its divisors is an integer number (1671220350).

Almost surely, 2^13144981523 is an apocalyptic number.

13144981523 is a deficient number, since it is larger than the sum of its proper divisors (224781277).

13144981523 is an equidigital number, since it uses as much as digits as its factorization.

13144981523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33141.

The product of its digits is 103680, while the sum is 41.

The spelling of 13144981523 in words is "thirteen billion, one hundred forty-four million, nine hundred eighty-one thousand, five hundred twenty-three".