16039091 has 4 divisors (see below), whose sum is σ = 16311000. Its totient is φ = 15767184.

The previous prime is 16039087. The next prime is 16039123. The reversal of 16039091 is 19093061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16039091 - 2² = 16039087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16039031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135866 + ... + 135983.

It is an arithmetic number, because the mean of its divisors is an integer number (4077750).

Almost surely, 2^16039091 is an apocalyptic number.

16039091 is a deficient number, since it is larger than the sum of its proper divisors (271909).

16039091 is an equidigital number, since it uses as much as digits as its factorization.

16039091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271908.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 16039091 is about 4004.8833940578. The cubic root of 16039091 is about 252.1892579700.

The spelling of 16039091 in words is "sixteen million, thirty-nine thousand, ninety-one".