13767139 has 2 divisors, whose sum is σ = 13767140. Its totient is φ = 13767138.

The previous prime is 13767137. The next prime is 13767157. The reversal of 13767139 is 93176731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13767139 - 2¹ = 13767137 is a prime.

Together with 13767137, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13767098 and 13767107.

It is not a weakly prime, because it can be changed into another prime (13767137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6883569 + 6883570.

It is an arithmetic number, because the mean of its divisors is an integer number (6883570).

Almost surely, 2^13767139 is an apocalyptic number.

13767139 is a deficient number, since it is larger than the sum of its proper divisors (1).

13767139 is an equidigital number, since it uses as much as digits as its factorization.

13767139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 37.

The square root of 13767139 is about 3710.4095461283. The cubic root of 13767139 is about 239.6704910936.

It can be divided in two parts, 1376 and 7139, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 13767139 in words is "thirteen million, seven hundred sixty-seven thousand, one hundred thirty-nine".