14536639 has 4 divisors (see below), whose sum is σ = 15654856. Its totient is φ = 13418424.

The previous prime is 14536633. The next prime is 14536657. The reversal of 14536639 is 93663541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93663541 = 1307 ⋅71663.

It is a cyclic number.

It is not a de Polignac number, because 14536639 - 2³ = 14536631 is a prime.

It is a super-2 number, since 2×14536639² = 422627746832642, 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 = 14536598 and 14536607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14536631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559089 + ... + 559114.

It is an arithmetic number, because the mean of its divisors is an integer number (3913714).

Almost surely, 2^14536639 is an apocalyptic number.

14536639 is a deficient number, since it is larger than the sum of its proper divisors (1118217).

14536639 is a wasteful number, since it uses less digits than its factorization.

14536639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118216.

The product of its digits is 58320, while the sum is 37.

The square root of 14536639 is about 3812.6944540574. The cubic root of 14536639 is about 244.0551642272.

The spelling of 14536639 in words is "fourteen million, five hundred thirty-six thousand, six hundred thirty-nine".