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135697 is a prime number
BaseRepresentation
bin100001001000010001
320220010211
4201020101
513320242
62524121
71103422
oct411021
9226124
10135697
1192a51
1266641
13499c3
1437649
152a317
hex21211

135697 has 2 divisors, whose sum is σ = 135698. Its totient is φ = 135696.

The previous prime is 135671. The next prime is 135701. The reversal of 135697 is 796531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112896 + 22801 = 336^2 + 151^2 .

It is an emirp because it is prime and its reverse (796531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135697 - 211 = 133649 is a prime.

It is a Chen prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135607) 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 as a sum of consecutive naturals, namely, 67848 + 67849.

It is an arithmetic number, because the mean of its divisors is an integer number (67849).

2135697 is an apocalyptic number.

It is an amenable number.

135697 is a deficient number, since it is larger than the sum of its proper divisors (1).

135697 is an equidigital number, since it uses as much as digits as its factorization.

135697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 31.

The square root of 135697 is about 368.3707371657. The cubic root of 135697 is about 51.3874123213.

The spelling of 135697 in words is "one hundred thirty-five thousand, six hundred ninety-seven".