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134145653 = 821163393
BaseRepresentation
bin1111111111011…
…10011001110101
3100100102022020112
413333232121311
5233320130103
621151112405
73216135125
oct777563165
9310368215
10134145653
11697a3684
1238b12705
1321a3a735
1413b5cc85
15bb9bcd8
hex7fee675

134145653 has 4 divisors (see below), whose sum is σ = 134309868. Its totient is φ = 133981440.

The previous prime is 134145631. The next prime is 134145659. The reversal of 134145653 is 356541431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17656804 + 116488849 = 4202^2 + 10793^2 .

It is a cyclic number.

It is not a de Polignac number, because 134145653 - 216 = 134080117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134145659) 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, 80876 + ... + 82517.

It is an arithmetic number, because the mean of its divisors is an integer number (33577467).

Almost surely, 2134145653 is an apocalyptic number.

It is an amenable number.

134145653 is a deficient number, since it is larger than the sum of its proper divisors (164215).

134145653 is an equidigital number, since it uses as much as digits as its factorization.

134145653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164214.

The product of its digits is 21600, while the sum is 32.

The square root of 134145653 is about 11582.1264455194. The cubic root of 134145653 is about 511.9083354883.

The spelling of 134145653 in words is "one hundred thirty-four million, one hundred forty-five thousand, six hundred fifty-three".

Divisors: 1 821 163393 134145653