135902563 has 2 divisors, whose sum is σ = 135902564. Its totient is φ = 135902562.

The previous prime is 135902549. The next prime is 135902579. The reversal of 135902563 is 365209531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135902563 - 2¹³ = 135894371 is a prime.

It is not a weakly prime, because it can be changed into another prime (135902363) 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, 67951281 + 67951282.

It is an arithmetic number, because the mean of its divisors is an integer number (67951282).

Almost surely, 2^135902563 is an apocalyptic number.

135902563 is a deficient number, since it is larger than the sum of its proper divisors (1).

135902563 is an equidigital number, since it uses as much as digits as its factorization.

135902563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 135902563 is about 11657.7254642576. The cubic root of 135902563 is about 514.1334760627.

The spelling of 135902563 in words is "one hundred thirty-five million, nine hundred two thousand, five hundred sixty-three".