13986138 has 16 divisors (see below), whose sum is σ = 29617920. Its totient is φ = 4387776.

The previous prime is 13986113. The next prime is 13986157. The reversal of 13986138 is 83168931.

It is a super-2 number, since 2×13986138² = 391224112310088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13986096 and 13986105.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 68458 + ... + 68661.

It is an arithmetic number, because the mean of its divisors is an integer number (1851120).

Almost surely, 2^13986138 is an apocalyptic number.

13986138 is an abundant number, since it is smaller than the sum of its proper divisors (15631782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13986138 is a wasteful number, since it uses less digits than its factorization.

13986138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137141.

The product of its digits is 31104, while the sum is 39.

The square root of 13986138 is about 3739.8045403470. The cubic root of 13986138 is about 240.9346539775.

The spelling of 13986138 in words is "thirteen million, nine hundred eighty-six thousand, one hundred thirty-eight".