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136705 = 5191439
BaseRepresentation
bin100001011000000001
320221112011
4201120001
513333310
62532521
71106362
oct413001
9227464
10136705
1193788
1267141
134a2ba
1437b69
152a78a
hex21601

136705 has 8 divisors (see below), whose sum is σ = 172800. Its totient is φ = 103536.

The previous prime is 136693. The next prime is 136709. The reversal of 136705 is 507631.

It can be divided in two parts, 136 and 705, that added together give a square (841 = 292).

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 136705 - 29 = 136193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625 + ... + 814.

It is an arithmetic number, because the mean of its divisors is an integer number (21600).

It is a Proth number, since it is equal to 267 ⋅ 29 + 1 and 267 < 29.

2136705 is an apocalyptic number.

It is an amenable number.

136705 is a deficient number, since it is larger than the sum of its proper divisors (36095).

136705 is a wasteful number, since it uses less digits than its factorization.

136705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 136705 is about 369.7363925826. The cubic root of 136705 is about 51.5143391749.

The spelling of 136705 in words is "one hundred thirty-six thousand, seven hundred five".

Divisors: 1 5 19 95 1439 7195 27341 136705