16594121 has 2 divisors, whose sum is σ = 16594122. Its totient is φ = 16594120.

The previous prime is 16594117. The next prime is 16594129. The reversal of 16594121 is 12149561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16491721 + 102400 = 4061^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 16594121 - 2² = 16594117 is a prime.

It is not a weakly prime, because it can be changed into another prime (16594129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8297060 + 8297061.

It is an arithmetic number, because the mean of its divisors is an integer number (8297061).

Almost surely, 2^16594121 is an apocalyptic number.

It is an amenable number.

16594121 is a deficient number, since it is larger than the sum of its proper divisors (1).

16594121 is an equidigital number, since it uses as much as digits as its factorization.

16594121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 16594121 is about 4073.5882217033. The cubic root of 16594121 is about 255.0653222374.

The spelling of 16594121 in words is "sixteen million, five hundred ninety-four thousand, one hundred twenty-one".