13787127 has 12 divisors (see below), whose sum is σ = 19963944. Its totient is φ = 9168720.

The previous prime is 13787113. The next prime is 13787149. The reversal of 13787127 is 72178731.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-13787127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13787091 and 13787100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13787107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2488 + ... + 5810.

It is an arithmetic number, because the mean of its divisors is an integer number (1663662).

Almost surely, 2^13787127 is an apocalyptic number.

13787127 is a deficient number, since it is larger than the sum of its proper divisors (6176817).

13787127 is a wasteful number, since it uses less digits than its factorization.

13787127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790 (or 3787 counting only the distinct ones).

The product of its digits is 16464, while the sum is 36.

The square root of 13787127 is about 3713.1020723918. The cubic root of 13787127 is about 239.7864245795.

The spelling of 13787127 in words is "thirteen million, seven hundred eighty-seven thousand, one hundred twenty-seven".