14128121 has 12 divisors (see below), whose sum is σ = 16500132. Its totient is φ = 12061728.

The previous prime is 14128111. The next prime is 14128129. The reversal of 14128121 is 12182141.

It can be written as a sum of positive squares in 2 ways, for example, as 3759721 + 10368400 = 1939^2 + 3220^2 .

It is not a de Polignac number, because 14128121 - 2⁶ = 14128057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14128093 and 14128102.

It is not an unprimeable number, because it can be changed into a prime (14128129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17891 + ... + 18663.

It is an arithmetic number, because the mean of its divisors is an integer number (1375011).

Almost surely, 2^14128121 is an apocalyptic number.

It is an amenable number.

14128121 is a deficient number, since it is larger than the sum of its proper divisors (2372011).

14128121 is an equidigital number, since it uses as much as digits as its factorization.

14128121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1153 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

The square root of 14128121 is about 3758.7392833236. The cubic root of 14128121 is about 241.7472088787.

The spelling of 14128121 in words is "fourteen million, one hundred twenty-eight thousand, one hundred twenty-one".