135866527 has 2 divisors, whose sum is σ = 135866528. Its totient is φ = 135866526.

The previous prime is 135866483. The next prime is 135866539. The reversal of 135866527 is 725668531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135866527 - 2¹¹ = 135864479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135866597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67933263 + 67933264.

It is an arithmetic number, because the mean of its divisors is an integer number (67933264).

Almost surely, 2^135866527 is an apocalyptic number.

135866527 is a deficient number, since it is larger than the sum of its proper divisors (1).

135866527 is an equidigital number, since it uses as much as digits as its factorization.

135866527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 135866527 is about 11656.1797772684. The cubic root of 135866527 is about 514.0880294050.

The spelling of 135866527 in words is "one hundred thirty-five million, eight hundred sixty-six thousand, five hundred twenty-seven".