135552523 has 2 divisors, whose sum is σ = 135552524. Its totient is φ = 135552522.

The previous prime is 135552511. The next prime is 135552533. The reversal of 135552523 is 325255531.

It is a strong prime.

It is an emirp because it is prime and its reverse (325255531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135552523 is a prime.

It is not a weakly prime, because it can be changed into another prime (135552503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67776261 + 67776262.

It is an arithmetic number, because the mean of its divisors is an integer number (67776262).

Almost surely, 2^135552523 is an apocalyptic number.

135552523 is a deficient number, since it is larger than the sum of its proper divisors (1).

135552523 is an equidigital number, since it uses as much as digits as its factorization.

135552523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22500, while the sum is 31.

The square root of 135552523 is about 11642.7025642675. The cubic root of 135552523 is about 513.6916840133.

The spelling of 135552523 in words is "one hundred thirty-five million, five hundred fifty-two thousand, five hundred twenty-three".