13986031 has 4 divisors (see below), whose sum is σ = 14075272. Its totient is φ = 13896792.

The previous prime is 13986029. The next prime is 13986067. The reversal of 13986031 is 13068931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13068931 = 83 ⋅157457.

It is a cyclic number.

It is not a de Polignac number, because 13986031 - 2¹ = 13986029 is a prime.

It is a super-2 number, since 2×13986031² = 391218126265922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13985984 and 13986002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13986331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44385 + ... + 44698.

It is an arithmetic number, because the mean of its divisors is an integer number (3518818).

Almost surely, 2^13986031 is an apocalyptic number.

13986031 is a deficient number, since it is larger than the sum of its proper divisors (89241).

13986031 is an equidigital number, since it uses as much as digits as its factorization.

13986031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89240.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 13986031 is about 3739.7902347592. The cubic root of 13986031 is about 240.9340395578.

The spelling of 13986031 in words is "thirteen million, nine hundred eighty-six thousand, thirty-one".