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136167161 = 1317616141
BaseRepresentation
bin10000001110110…
…11111011111001
3100111020000020012
420013123323321
5234324322121
621302311305
73242254544
oct1007337371
9314200205
10136167161
116a954449
1239728535
13222978b0
141412785b
15be4ac5b
hex81dbef9

136167161 has 8 divisors (see below), whose sum is σ = 155267784. Its totient is φ = 118298880.

The previous prime is 136167149. The next prime is 136167173. The reversal of 136167161 is 161761631.

It is an interprime number because it is at equal distance from previous prime (136167149) and next prime (136167173).

It can be written as a sum of positive squares in 4 ways, for example, as 1600 + 136165561 = 40^2 + 11669^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136167161 - 218 = 135905017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136167121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307850 + ... + 308291.

It is an arithmetic number, because the mean of its divisors is an integer number (19408473).

Almost surely, 2136167161 is an apocalyptic number.

It is an amenable number.

136167161 is a deficient number, since it is larger than the sum of its proper divisors (19100623).

136167161 is a wasteful number, since it uses less digits than its factorization.

136167161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616171.

The product of its digits is 4536, while the sum is 32.

The square root of 136167161 is about 11669.0685575156. The cubic root of 136167161 is about 514.4669269660.

The spelling of 136167161 in words is "one hundred thirty-six million, one hundred sixty-seven thousand, one hundred sixty-one".

Divisors: 1 13 17 221 616141 8009833 10474397 136167161