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12134897 = 27194463
BaseRepresentation
bin101110010010…
…100111110001
3211211111221122
4232102213301
511101304042
61112032025
7205100465
oct56224761
924744848
1012134897
116939145
124092615
13268b518
14187c4a5
1510ea7d2
hexb929f1

12134897 has 4 divisors (see below), whose sum is σ = 12142080. Its totient is φ = 12127716.

The previous prime is 12134891. The next prime is 12134917. The reversal of 12134897 is 79843121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79843121 = 711124551.

It is a cyclic number.

It is not a de Polignac number, because 12134897 - 28 = 12134641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12134891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488 + ... + 4950.

It is an arithmetic number, because the mean of its divisors is an integer number (3035520).

Almost surely, 212134897 is an apocalyptic number.

It is an amenable number.

12134897 is a deficient number, since it is larger than the sum of its proper divisors (7183).

12134897 is an equidigital number, since it uses as much as digits as its factorization.

12134897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7182.

The product of its digits is 12096, while the sum is 35.

The square root of 12134897 is about 3483.5179057958. The cubic root of 12134897 is about 229.7975344904.

It can be divided in two parts, 12134 and 897, that added together give a palindrome (13031).

The spelling of 12134897 in words is "twelve million, one hundred thirty-four thousand, eight hundred ninety-seven".

Divisors: 1 2719 4463 12134897