16126081 has 4 divisors (see below), whose sum is σ = 17074692. Its totient is φ = 15177472.

The previous prime is 16126069. The next prime is 16126091. The reversal of 16126081 is 18062161.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5130225 + 10995856 = 2265^2 + 3316^2 .

It is a cyclic number.

It is not a de Polignac number, because 16126081 - 2⁵ = 16126049 is a prime.

It is a super-2 number, since 2×16126081² = 520100976837122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16126051) 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, 474280 + ... + 474313.

It is an arithmetic number, because the mean of its divisors is an integer number (4268673).

Almost surely, 2^16126081 is an apocalyptic number.

It is an amenable number.

16126081 is a deficient number, since it is larger than the sum of its proper divisors (948611).

16126081 is an equidigital number, since it uses as much as digits as its factorization.

16126081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948610.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 16126081 is about 4015.7291990372. The cubic root of 16126081 is about 252.6443627630.

The spelling of 16126081 in words is "sixteen million, one hundred twenty-six thousand, eighty-one".