13718734129 has 3 divisors (see below), whose sum is σ = 13718851257. Its totient is φ = 13718617002.

The previous prime is 13718734121. The next prime is 13718734157. The reversal of 13718734129 is 92143781731.

The square root of 13718734129 is 117127.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92143781731 = 5051 ⋅18242681.

It is not a de Polignac number, because 13718734129 - 2³ = 13718734121 is a prime.

It is a super-2 number, since 2×13718734129² (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 (13718734121) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 58564 + ... + 175690.

It is an arithmetic number, because the mean of its divisors is an integer number (4572950419).

Almost surely, 2^13718734129 is an apocalyptic number.

13718734129 is the 117127-th square number.

13718734129 is the 58564-th centered octagonal number.

It is an amenable number.

13718734129 is a deficient number, since it is larger than the sum of its proper divisors (117128).

13718734129 is an frugal number, since it uses more digits than its factorization.

13718734129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234254 (or 117127 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The spelling of 13718734129 in words is "thirteen billion, seven hundred eighteen million, seven hundred thirty-four thousand, one hundred twenty-nine".