14136431 has 4 divisors (see below), whose sum is σ = 14481264. Its totient is φ = 13791600.

The previous prime is 14136407. The next prime is 14136443. The reversal of 14136431 is 13463141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13463141 = 577 ⋅23333.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14136431 is a prime.

It is a super-2 number, since 2×14136431² = 399677362835522, 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 = 14136397 and 14136406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14136461) 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, 172355 + ... + 172436.

It is an arithmetic number, because the mean of its divisors is an integer number (3620316).

Almost surely, 2^14136431 is an apocalyptic number.

14136431 is a deficient number, since it is larger than the sum of its proper divisors (344833).

14136431 is an equidigital number, since it uses as much as digits as its factorization.

14136431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344832.

The product of its digits is 864, while the sum is 23.

The square root of 14136431 is about 3759.8445446587. The cubic root of 14136431 is about 241.7945972413.

Adding to 14136431 its reverse (13463141), we get a palindrome (27599572).

The spelling of 14136431 in words is "fourteen million, one hundred thirty-six thousand, four hundred thirty-one".