14009531 has 4 divisors (see below), whose sum is σ = 14023464. Its totient is φ = 13995600.

The previous prime is 14009521. The next prime is 14009539. The reversal of 14009531 is 13590041.

It is a happy number.

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 14009531 - 2⁶ = 14009467 is a prime.

It is a super-2 number, since 2×14009531² = 392533917679922, 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 = 14009497 and 14009506.

It is not an unprimeable number, because it can be changed into a prime (14009539) 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, 5330 + ... + 7511.

It is an arithmetic number, because the mean of its divisors is an integer number (3505866).

Almost surely, 2^14009531 is an apocalyptic number.

14009531 is a deficient number, since it is larger than the sum of its proper divisors (13933).

14009531 is a wasteful number, since it uses less digits than its factorization.

14009531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13932.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 14009531 is about 3742.9308035282. The cubic root of 14009531 is about 241.0689070249.

Adding to 14009531 its reverse (13590041), we get a palindrome (27599572).

The spelling of 14009531 in words is "fourteen million, nine thousand, five hundred thirty-one".