135500537 has 2 divisors, whose sum is σ = 135500538. Its totient is φ = 135500536.

The previous prime is 135500527. The next prime is 135500539. The reversal of 135500537 is 735005531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135117376 + 383161 = 11624^2 + 619^2 .

It is a cyclic number.

It is not a de Polignac number, because 135500537 - 2¹⁸ = 135238393 is a prime.

Together with 135500539, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135500539) 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, 67750268 + 67750269.

It is an arithmetic number, because the mean of its divisors is an integer number (67750269).

Almost surely, 2^135500537 is an apocalyptic number.

It is an amenable number.

135500537 is a deficient number, since it is larger than the sum of its proper divisors (1).

135500537 is an equidigital number, since it uses as much as digits as its factorization.

135500537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7875, while the sum is 29.

The square root of 135500537 is about 11640.4697929250. The cubic root of 135500537 is about 513.6260066658.

The spelling of 135500537 in words is "one hundred thirty-five million, five hundred thousand, five hundred thirty-seven".