14155121 has 2 divisors, whose sum is σ = 14155122. Its totient is φ = 14155120.

The previous prime is 14155117. The next prime is 14155129. The reversal of 14155121 is 12155141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14145121 + 10000 = 3761^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 14155121 - 2² = 14155117 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 14155093 and 14155102.

It is not a weakly prime, because it can be changed into another prime (14155129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7077560 + 7077561.

It is an arithmetic number, because the mean of its divisors is an integer number (7077561).

Almost surely, 2^14155121 is an apocalyptic number.

It is an amenable number.

14155121 is a deficient number, since it is larger than the sum of its proper divisors (1).

14155121 is an equidigital number, since it uses as much as digits as its factorization.

14155121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 200, while the sum is 20.

The square root of 14155121 is about 3762.3291987810. The cubic root of 14155121 is about 241.9011104735.

Adding to 14155121 its sum of digits (20), we get a palindrome (14155141).

The spelling of 14155121 in words is "fourteen million, one hundred fifty-five thousand, one hundred twenty-one".