135427 has 2 divisors, whose sum is σ = 135428. Its totient is φ = 135426.

The previous prime is 135409. The next prime is 135431. The reversal of 135427 is 724531.

It is a strong prime.

It is an emirp because it is prime and its reverse (724531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135427 - 2¹¹ = 133379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135398 and 135407.

It is not a weakly prime, because it can be changed into another prime (135467) 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, 67713 + 67714.

It is an arithmetic number, because the mean of its divisors is an integer number (67714).

2¹³⁵⁴²⁷ is an apocalyptic number.

135427 is a deficient number, since it is larger than the sum of its proper divisors (1).

135427 is an equidigital number, since it uses as much as digits as its factorization.

135427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 22.

The square root of 135427 is about 368.0040760644. The cubic root of 135427 is about 51.3533073823.

Adding to 135427 its reverse (724531), we get a palindrome (859958).

The spelling of 135427 in words is "one hundred thirty-five thousand, four hundred twenty-seven".