135426523 has 2 divisors, whose sum is σ = 135426524. Its totient is φ = 135426522.

The previous prime is 135426517. The next prime is 135426589. The reversal of 135426523 is 325624531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135426523 is a prime.

It is not a weakly prime, because it can be changed into another prime (135426503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67713261 + 67713262.

It is an arithmetic number, because the mean of its divisors is an integer number (67713262).

Almost surely, 2^135426523 is an apocalyptic number.

135426523 is a deficient number, since it is larger than the sum of its proper divisors (1).

135426523 is an equidigital number, since it uses as much as digits as its factorization.

135426523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 31.

The square root of 135426523 is about 11637.2901914492. The cubic root of 135426523 is about 513.5324709010.

The spelling of 135426523 in words is "one hundred thirty-five million, four hundred twenty-six thousand, five hundred twenty-three".