13943729149 has 6 divisors (see below), whose sum is σ = 16220256414. Its totient is φ = 11951767800.

The previous prime is 13943729143. The next prime is 13943729167. The reversal of 13943729149 is 94192734931.

It can be written as a sum of positive squares in only one way, i.e., 11628387225 + 2315341924 = 107835^2 + 48118^2 .

It is not a de Polignac number, because 13943729149 - 2¹¹ = 13943727101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13943729096 and 13943729105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13943729143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142282902 + ... + 142282999.

It is an arithmetic number, because the mean of its divisors is an integer number (2703376069).

Almost surely, 2^13943729149 is an apocalyptic number.

It is an amenable number.

13943729149 is a deficient number, since it is larger than the sum of its proper divisors (2276527265).

13943729149 is an equidigital number, since it uses as much as digits as its factorization.

13943729149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284565915 (or 284565908 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 52.

The spelling of 13943729149 in words is "thirteen billion, nine hundred forty-three million, seven hundred twenty-nine thousand, one hundred forty-nine".