16280161 has 2 divisors, whose sum is σ = 16280162. Its totient is φ = 16280160.

The previous prime is 16280123. The next prime is 16280167. The reversal of 16280161 is 16108261.

16280161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15358561 + 921600 = 3919^2 + 960^2 .

It is a cyclic number.

It is not a de Polignac number, because 16280161 - 2²¹ = 14183009 is a prime.

It is not a weakly prime, because it can be changed into another prime (16280167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8140080 + 8140081.

It is an arithmetic number, because the mean of its divisors is an integer number (8140081).

Almost surely, 2^16280161 is an apocalyptic number.

It is an amenable number.

16280161 is a deficient number, since it is larger than the sum of its proper divisors (1).

16280161 is an equidigital number, since it uses as much as digits as its factorization.

16280161 is an evil number, because the sum of its binary digits is even.

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

The square root of 16280161 is about 4034.8681515014. The cubic root of 16280161 is about 253.4464612856.

The spelling of 16280161 in words is "sixteen million, two hundred eighty thousand, one hundred sixty-one".