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135807 = 3729223
BaseRepresentation
bin100001001001111111
320220021220
4201021333
513321212
62524423
71103640
oct411177
9226256
10135807
1193041
1266713
1349a79
14376c7
152a38c
hex2127f

135807 has 16 divisors (see below), whose sum is σ = 215040. Its totient is φ = 74592.

The previous prime is 135799. The next prime is 135829. The reversal of 135807 is 708531.

It is not a de Polignac number, because 135807 - 23 = 135799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135887) 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, 498 + ... + 720.

It is an arithmetic number, because the mean of its divisors is an integer number (13440).

2135807 is an apocalyptic number.

135807 is a deficient number, since it is larger than the sum of its proper divisors (79233).

135807 is a wasteful number, since it uses less digits than its factorization.

135807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 135807 is about 368.5200130251. The cubic root of 135807 is about 51.4012939562.

The spelling of 135807 in words is "one hundred thirty-five thousand, eight hundred seven".

Divisors: 1 3 7 21 29 87 203 223 609 669 1561 4683 6467 19401 45269 135807