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14109121 = 131085317
BaseRepresentation
bin110101110100…
…100111000001
3222112211002001
4311310213001
512102442441
61222224001
7230632315
oct65644701
928484061
1014109121
117a67434
124885001
132bcccc0
141c33b45
15138a731
hexd749c1

14109121 has 4 divisors (see below), whose sum is σ = 15194452. Its totient is φ = 13023792.

The previous prime is 14109103. The next prime is 14109149. The reversal of 14109121 is 12190141.

14109121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12190141 = 81115031.

It can be written as a sum of positive squares in 2 ways, for example, as 6574096 + 7535025 = 2564^2 + 2745^2 .

It is a cyclic number.

It is not a de Polignac number, because 14109121 - 25 = 14109089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14109181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542646 + ... + 542671.

It is an arithmetic number, because the mean of its divisors is an integer number (3798613).

Almost surely, 214109121 is an apocalyptic number.

It is an amenable number.

14109121 is a deficient number, since it is larger than the sum of its proper divisors (1085331).

14109121 is a wasteful number, since it uses less digits than its factorization.

14109121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085330.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 14109121 is about 3756.2109898141. The cubic root of 14109121 is about 241.6387901787.

Adding to 14109121 its reverse (12190141), we get a palindrome (26299262).

The spelling of 14109121 in words is "fourteen million, one hundred nine thousand, one hundred twenty-one".

Divisors: 1 13 1085317 14109121