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134897161 = 779832939
BaseRepresentation
bin10000000101001…
…01111000001001
3100101211111010011
420002211320021
5234013202121
621215151521
73225415120
oct1002457011
9311744104
10134897161
116a167263
12392155a1
1321c41809
1413cb6ab7
15bc997e1
hex80a5e09

134897161 has 16 divisors (see below), whose sum is σ = 158054400. Its totient is φ = 112748688.

The previous prime is 134897123. The next prime is 134897167. The reversal of 134897161 is 161798431.

It is a cyclic number.

It is not a de Polignac number, because 134897161 - 215 = 134864393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134897167) 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, 44430 + ... + 47368.

It is an arithmetic number, because the mean of its divisors is an integer number (9878400).

Almost surely, 2134897161 is an apocalyptic number.

It is an amenable number.

134897161 is a deficient number, since it is larger than the sum of its proper divisors (23157239).

134897161 is an equidigital number, since it uses as much as digits as its factorization.

134897161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108.

The product of its digits is 36288, while the sum is 40.

The square root of 134897161 is about 11614.5237095630. The cubic root of 134897161 is about 512.8624900117.

The spelling of 134897161 in words is "one hundred thirty-four million, eight hundred ninety-seven thousand, one hundred sixty-one".

Divisors: 1 7 79 83 553 581 2939 6557 20573 45899 232181 243937 1625267 1707559 19271023 134897161