135986633 has 2 divisors, whose sum is σ = 135986634. Its totient is φ = 135986632.

The previous prime is 135986579. The next prime is 135986657. The reversal of 135986633 is 336689531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120714169 + 15272464 = 10987^2 + 3908^2 .

It is a cyclic number.

It is not a de Polignac number, because 135986633 - 2¹⁸ = 135724489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (135986693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67993316 + 67993317.

It is an arithmetic number, because the mean of its divisors is an integer number (67993317).

Almost surely, 2^135986633 is an apocalyptic number.

It is an amenable number.

135986633 is a deficient number, since it is larger than the sum of its proper divisors (1).

135986633 is an equidigital number, since it uses as much as digits as its factorization.

135986633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 44.

The square root of 135986633 is about 11661.3306702108. The cubic root of 135986633 is about 514.2394693831.

The spelling of 135986633 in words is "one hundred thirty-five million, nine hundred eighty-six thousand, six hundred thirty-three".