16139659 has 8 divisors (see below), whose sum is σ = 16930368. Its totient is φ = 15367680.

The previous prime is 16139611. The next prime is 16139671. The reversal of 16139659 is 95693161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16139659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16139159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2902 + ... + 6379.

It is an arithmetic number, because the mean of its divisors is an integer number (2116296).

Almost surely, 2^16139659 is an apocalyptic number.

16139659 is a deficient number, since it is larger than the sum of its proper divisors (790709).

16139659 is an equidigital number, since it uses as much as digits as its factorization.

16139659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9365.

The product of its digits is 43740, while the sum is 40.

The square root of 16139659 is about 4017.4194453654. The cubic root of 16139659 is about 252.7152508856.

The spelling of 16139659 in words is "sixteen million, one hundred thirty-nine thousand, six hundred fifty-nine".