13138013929 has 4 divisors (see below), whose sum is σ = 13162032784. Its totient is φ = 13113995076.

The previous prime is 13138013893. The next prime is 13138013953. The reversal of 13138013929 is 92931083131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92931083131 = 125921 ⋅738011.

It is a cyclic number.

It is not a de Polignac number, because 13138013929 - 2¹³ = 13138005737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13138013891 and 13138013900.

It is not an unprimeable number, because it can be changed into a prime (13138013969) 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, 12008607 + ... + 12009700.

It is an arithmetic number, because the mean of its divisors is an integer number (3290508196).

Almost surely, 2^13138013929 is an apocalyptic number.

It is an amenable number.

13138013929 is a deficient number, since it is larger than the sum of its proper divisors (24018855).

13138013929 is an equidigital number, since it uses as much as digits as its factorization.

13138013929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24018854.

The product of its (nonzero) digits is 34992, while the sum is 40.

The spelling of 13138013929 in words is "thirteen billion, one hundred thirty-eight million, thirteen thousand, nine hundred twenty-nine".