14213831 has 4 divisors (see below), whose sum is σ = 14354664. Its totient is φ = 14073000.

The previous prime is 14213827. The next prime is 14213861. The reversal of 14213831 is 13831241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13831241 = 79 ⋅175079.

It is a cyclic number.

It is not a de Polignac number, because 14213831 - 2² = 14213827 is a prime.

It is a super-2 number, since 2×14213831² = 404065983393122, 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 = 14213797 and 14213806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14213821) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 70265 + ... + 70466.

It is an arithmetic number, because the mean of its divisors is an integer number (3588666).

Almost surely, 2^14213831 is an apocalyptic number.

14213831 is a deficient number, since it is larger than the sum of its proper divisors (140833).

14213831 is a wasteful number, since it uses less digits than its factorization.

14213831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140832.

The product of its digits is 576, while the sum is 23.

The square root of 14213831 is about 3770.1234727791. The cubic root of 14213831 is about 242.2350867657.

The spelling of 14213831 in words is "fourteen million, two hundred thirteen thousand, eight hundred thirty-one".