13860031 has 4 divisors (see below), whose sum is σ = 13989672. Its totient is φ = 13730392.

The previous prime is 13860017. The next prime is 13860037. The reversal of 13860031 is 13006831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13860031 - 2¹³ = 13851839 is a prime.

It is a super-2 number, since 2×13860031² = 384200918641922, 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 = 13859984 and 13860011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13860037) 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 3 ways as a sum of consecutive naturals, for example, 64660 + ... + 64873.

It is an arithmetic number, because the mean of its divisors is an integer number (3497418).

Almost surely, 2^13860031 is an apocalyptic number.

13860031 is a deficient number, since it is larger than the sum of its proper divisors (129641).

13860031 is a wasteful number, since it uses less digits than its factorization.

13860031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129640.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13860031 is about 3722.9062572136. The cubic root of 13860031 is about 240.2083318368.

Adding to 13860031 its reverse (13006831), we get a palindrome (26866862).

The spelling of 13860031 in words is "thirteen million, eight hundred sixty thousand, thirty-one".