16192081 has 4 divisors (see below), whose sum is σ = 16230964. Its totient is φ = 16153200.

The previous prime is 16192027. The next prime is 16192087. The reversal of 16192081 is 18029161.

It is a happy number.

16192081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 982081 + 15210000 = 991^2 + 3900^2 .

It is a cyclic number.

It is not a de Polignac number, because 16192081 - 2¹⁷ = 16061009 is a prime.

It is a super-2 number, since 2×16192081² = 524366974221122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16192087) 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, 18810 + ... + 19651.

It is an arithmetic number, because the mean of its divisors is an integer number (4057741).

Almost surely, 2^16192081 is an apocalyptic number.

It is an amenable number.

16192081 is a deficient number, since it is larger than the sum of its proper divisors (38883).

16192081 is an equidigital number, since it uses as much as digits as its factorization.

16192081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38882.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 16192081 is about 4023.9384935657. The cubic root of 16192081 is about 252.9885635912.

The spelling of 16192081 in words is "sixteen million, one hundred ninety-two thousand, eighty-one".