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131359 = 177727
BaseRepresentation
bin100000000100011111
320200012011
4200010133
513200414
62452051
71054654
oct400437
9220164
10131359
118a768
1264027
1347a37
1435c2b
1528dc4
hex2011f

131359 has 4 divisors (see below), whose sum is σ = 139104. Its totient is φ = 123616.

The previous prime is 131357. The next prime is 131363. The reversal of 131359 is 953131.

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

It is a cyclic number.

It is not a de Polignac number, because 131359 - 21 = 131357 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 (131357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3847 + ... + 3880.

It is an arithmetic number, because the mean of its divisors is an integer number (34776).

2131359 is an apocalyptic number.

131359 is a deficient number, since it is larger than the sum of its proper divisors (7745).

131359 is an equidigital number, since it uses as much as digits as its factorization.

131359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7744.

The product of its digits is 405, while the sum is 22.

The square root of 131359 is about 362.4348217266. The cubic root of 131359 is about 50.8338821643.

The spelling of 131359 in words is "one hundred thirty-one thousand, three hundred fifty-nine".

Divisors: 1 17 7727 131359