14039509 has 12 divisors (see below), whose sum is σ = 15967980. Its totient is φ = 12320000.

The previous prime is 14039477. The next prime is 14039513. The reversal of 14039509 is 90593041.

It can be written as a sum of positive squares in 2 ways, for example, as 3294225 + 10745284 = 1815^2 + 3278^2 .

It is not a de Polignac number, because 14039509 - 2⁵ = 14039477 is a prime.

It is a super-2 number, since 2×14039509² = 394215625922162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14039009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1509 + ... + 5509.

It is an arithmetic number, because the mean of its divisors is an integer number (1330665).

Almost surely, 2^14039509 is an apocalyptic number.

It is an amenable number.

14039509 is a deficient number, since it is larger than the sum of its proper divisors (1928471).

14039509 is a wasteful number, since it uses less digits than its factorization.

14039509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052 (or 4041 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 14039509 is about 3746.9332793633. The cubic root of 14039509 is about 241.2407332655.

The spelling of 14039509 in words is "fourteen million, thirty-nine thousand, five hundred nine".