14420121 has 16 divisors (see below), whose sum is σ = 19892544. Its totient is φ = 9284544.

The previous prime is 14420111. The next prime is 14420123. The reversal of 14420121 is 12102441.

It is not a de Polignac number, because 14420121 - 2¹¹ = 14418073 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14420121.

It is not an unprimeable number, because it can be changed into a prime (14420123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17695 + ... + 18491.

It is an arithmetic number, because the mean of its divisors is an integer number (1243284).

Almost surely, 2^14420121 is an apocalyptic number.

It is an amenable number.

14420121 is a deficient number, since it is larger than the sum of its proper divisors (5472423).

14420121 is a wasteful number, since it uses less digits than its factorization.

14420121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 14420121 is about 3797.3834412658. The cubic root of 14420121 is about 243.4013418881.

Adding to 14420121 its reverse (12102441), we get a palindrome (26522562).

It can be divided in two parts, 14420 and 121, that added together give a palindrome (14541).

The spelling of 14420121 in words is "fourteen million, four hundred twenty thousand, one hundred twenty-one".