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135479 is a prime number
BaseRepresentation
bin100001000100110111
320212211202
4201010313
513313404
62523115
71102661
oct410467
9225752
10135479
1192873
126649b
1349886
1437531
152a21e
hex21137

135479 has 2 divisors, whose sum is σ = 135480. Its totient is φ = 135478.

The previous prime is 135469. The next prime is 135497. The reversal of 135479 is 974531.

Together with next prime (135497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (974531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135479 - 24 = 135463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67739 + 67740.

It is an arithmetic number, because the mean of its divisors is an integer number (67740).

2135479 is an apocalyptic number.

135479 is a deficient number, since it is larger than the sum of its proper divisors (1).

135479 is an equidigital number, since it uses as much as digits as its factorization.

135479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 29.

The square root of 135479 is about 368.0747206750. The cubic root of 135479 is about 51.3598792630.

The spelling of 135479 in words is "one hundred thirty-five thousand, four hundred seventy-nine".