13747129 has 4 divisors (see below), whose sum is σ = 14996880. Its totient is φ = 12497380.

The previous prime is 13747121. The next prime is 13747147. The reversal of 13747129 is 92174731.

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.

It is a cyclic number.

It is not a de Polignac number, because 13747129 - 2³ = 13747121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13747094 and 13747103.

It is not an unprimeable number, because it can be changed into a prime (13747121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624859 + ... + 624880.

It is an arithmetic number, because the mean of its divisors is an integer number (3749220).

Almost surely, 2^13747129 is an apocalyptic number.

It is an amenable number.

13747129 is a deficient number, since it is larger than the sum of its proper divisors (1249751).

13747129 is a wasteful number, since it uses less digits than its factorization.

13747129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249750.

The product of its digits is 10584, while the sum is 34.

The square root of 13747129 is about 3707.7120977767. The cubic root of 13747129 is about 239.5543175514.

The spelling of 13747129 in words is "thirteen million, seven hundred forty-seven thousand, one hundred twenty-nine".