16336121 has 2 divisors, whose sum is σ = 16336122. Its totient is φ = 16336120.

The previous prime is 16336091. The next prime is 16336139. The reversal of 16336121 is 12163361.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10010896 + 6325225 = 3164^2 + 2515^2 .

It is a cyclic number.

It is not a de Polignac number, because 16336121 - 2⁶ = 16336057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16336171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8168060 + 8168061.

It is an arithmetic number, because the mean of its divisors is an integer number (8168061).

Almost surely, 2^16336121 is an apocalyptic number.

It is an amenable number.

16336121 is a deficient number, since it is larger than the sum of its proper divisors (1).

16336121 is an equidigital number, since it uses as much as digits as its factorization.

16336121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 16336121 is about 4041.7967539202. The cubic root of 16336121 is about 253.7365207558.

Adding to 16336121 its reverse (12163361), we get a palindrome (28499482).

The spelling of 16336121 in words is "sixteen million, three hundred thirty-six thousand, one hundred twenty-one".