16234121 has 2 divisors, whose sum is σ = 16234122. Its totient is φ = 16234120.

The previous prime is 16234109. The next prime is 16234123. The reversal of 16234121 is 12143261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9369721 + 6864400 = 3061^2 + 2620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16234121 is a prime.

Together with 16234123, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_1045190 and since 16234121 and 1045190 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 16234093 and 16234102.

It is not a weakly prime, because it can be changed into another prime (16234123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8117060 + 8117061.

It is an arithmetic number, because the mean of its divisors is an integer number (8117061).

Almost surely, 2^16234121 is an apocalyptic number.

It is an amenable number.

16234121 is a deficient number, since it is larger than the sum of its proper divisors (1).

16234121 is an equidigital number, since it uses as much as digits as its factorization.

16234121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 16234121 is about 4029.1588452182. The cubic root of 16234121 is about 253.2073217179.

Adding to 16234121 its reverse (12143261), we get a palindrome (28377382).

The spelling of 16234121 in words is "sixteen million, two hundred thirty-four thousand, one hundred twenty-one".