16139073 has 4 divisors (see below), whose sum is σ = 21518768. Its totient is φ = 10759380.

The previous prime is 16139041. The next prime is 16139089. The reversal of 16139073 is 37093161.

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.

It is not a de Polignac number, because 16139073 - 2⁵ = 16139041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16139073.

It is not an unprimeable number, because it can be changed into a prime (16139023) 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, 2689843 + ... + 2689848.

It is an arithmetic number, because the mean of its divisors is an integer number (5379692).

Almost surely, 2^16139073 is an apocalyptic number.

It is an amenable number.

16139073 is a deficient number, since it is larger than the sum of its proper divisors (5379695).

16139073 is an equidigital number, since it uses as much as digits as its factorization.

16139073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379694.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 16139073 is about 4017.3465123138. The cubic root of 16139073 is about 252.7121923135.

The spelling of 16139073 in words is "sixteen million, one hundred thirty-nine thousand, seventy-three".