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135173 is a prime number
BaseRepresentation
bin100001000000000101
320212102102
4201000011
513311143
62521445
71102043
oct410005
9225372
10135173
1192615
1266285
13496ac
1437393
152a0b8
hex21005

135173 has 2 divisors, whose sum is σ = 135174. Its totient is φ = 135172.

The previous prime is 135151. The next prime is 135181. The reversal of 135173 is 371531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134689 + 484 = 367^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 135173 - 28 = 134917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135193) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67586 + 67587.

It is an arithmetic number, because the mean of its divisors is an integer number (67587).

2135173 is an apocalyptic number.

It is an amenable number.

135173 is a deficient number, since it is larger than the sum of its proper divisors (1).

135173 is an equidigital number, since it uses as much as digits as its factorization.

135173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 315, while the sum is 20.

The square root of 135173 is about 367.6588092240. The cubic root of 135173 is about 51.3211820717.

The spelling of 135173 in words is "one hundred thirty-five thousand, one hundred seventy-three".