16026139 has 8 divisors (see below), whose sum is σ = 17029440. Its totient is φ = 15038856.

The previous prime is 16026133. The next prime is 16026151. The reversal of 16026139 is 93162061.

16026139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 16026139 - 2⁷ = 16026011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16026133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1909 + ... + 5974.

It is an arithmetic number, because the mean of its divisors is an integer number (2128680).

Almost surely, 2^16026139 is an apocalyptic number.

16026139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16026139 is a deficient number, since it is larger than the sum of its proper divisors (1003301).

16026139 is a wasteful number, since it uses less digits than its factorization.

16026139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8009.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 16026139 is about 4003.2660416215. The cubic root of 16026139 is about 252.1213564726.

The spelling of 16026139 in words is "sixteen million, twenty-six thousand, one hundred thirty-nine".