14139537 has 4 divisors (see below), whose sum is σ = 18852720. Its totient is φ = 9426356.

The previous prime is 14139533. The next prime is 14139551. The reversal of 14139537 is 73593141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73593141 = 3 ⋅24531047.

It is a cyclic number.

It is not a de Polignac number, because 14139537 - 2² = 14139533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14139498 and 14139507.

It is not an unprimeable number, because it can be changed into a prime (14139533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356587 + ... + 2356592.

It is an arithmetic number, because the mean of its divisors is an integer number (4713180).

Almost surely, 2^14139537 is an apocalyptic number.

It is an amenable number.

14139537 is a deficient number, since it is larger than the sum of its proper divisors (4713183).

14139537 is an equidigital number, since it uses as much as digits as its factorization.

14139537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4713182.

The product of its digits is 11340, while the sum is 33.

The square root of 14139537 is about 3760.2575709651. The cubic root of 14139537 is about 241.8123046580.

The spelling of 14139537 in words is "fourteen million, one hundred thirty-nine thousand, five hundred thirty-seven".