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136143 = 3272161
BaseRepresentation
bin100001001111001111
320220202100
4201033033
513324033
62530143
71104630
oct411717
9226670
10136143
1193317
1266953
1349c77
1437887
152a513
hex213cf

136143 has 12 divisors (see below), whose sum is σ = 224848. Its totient is φ = 77760.

The previous prime is 136139. The next prime is 136163. The reversal of 136143 is 341631.

It is not a de Polignac number, because 136143 - 22 = 136139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136143.

It is not an unprimeable number, because it can be changed into a prime (136133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1018 + ... + 1143.

2136143 is an apocalyptic number.

136143 is a deficient number, since it is larger than the sum of its proper divisors (88705).

136143 is a wasteful number, since it uses less digits than its factorization.

136143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174 (or 2171 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 136143 is about 368.9756089500. The cubic root of 136143 is about 51.4436496793.

Adding to 136143 its sum of digits (18), we get a square (136161 = 3692).

Adding to 136143 its reverse (341631), we get a palindrome (477774).

The spelling of 136143 in words is "one hundred thirty-six thousand, one hundred forty-three".

Divisors: 1 3 7 9 21 63 2161 6483 15127 19449 45381 136143