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134561 = 747409
BaseRepresentation
bin100000110110100001
320211120202
4200312201
513301221
62514545
71100210
oct406641
9224522
10134561
1192109
1265a55
134932b
1437077
1529d0b
hex20da1

134561 has 8 divisors (see below), whose sum is σ = 157440. Its totient is φ = 112608.

The previous prime is 134513. The next prime is 134581. The reversal of 134561 is 165431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-134561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134581) 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 7 ways as a sum of consecutive naturals, for example, 125 + ... + 533.

It is an arithmetic number, because the mean of its divisors is an integer number (19680).

2134561 is an apocalyptic number.

It is an amenable number.

134561 is a deficient number, since it is larger than the sum of its proper divisors (22879).

134561 is an equidigital number, since it uses as much as digits as its factorization.

134561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

The product of its digits is 360, while the sum is 20.

The square root of 134561 is about 366.8255716277. The cubic root of 134561 is about 51.2436121327.

Adding to 134561 its reverse (165431), we get a palindrome (299992).

The spelling of 134561 in words is "one hundred thirty-four thousand, five hundred sixty-one".

Divisors: 1 7 47 329 409 2863 19223 134561