13859131 has 16 divisors (see below), whose sum is σ = 17242848. Its totient is φ = 10944000.

The previous prime is 13859101. The next prime is 13859143. The reversal of 13859131 is 13195831.

It is a cyclic number.

It is not a de Polignac number, because 13859131 - 2¹¹ = 13857083 is a prime.

It is a super-2 number, since 2×13859131² = 384151024150322, 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 = 13859093 and 13859102.

It is not an unprimeable number, because it can be changed into a prime (13859101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420 + ... + 5281.

It is an arithmetic number, because the mean of its divisors is an integer number (1077678).

Almost surely, 2^13859131 is an apocalyptic number.

13859131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13859131 is a deficient number, since it is larger than the sum of its proper divisors (3383717).

13859131 is a wasteful number, since it uses less digits than its factorization.

13859131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742.

The product of its digits is 3240, while the sum is 31.

The square root of 13859131 is about 3722.7853819419. The cubic root of 13859131 is about 240.2031324214.

The spelling of 13859131 in words is "thirteen million, eight hundred fifty-nine thousand, one hundred thirty-one".