135563955 has 32 divisors (see below), whose sum is σ = 238256640. Its totient is φ = 65514240.

The previous prime is 135563947. The next prime is 135563957. The reversal of 135563955 is 559365531.

It is a happy number.

It is not a de Polignac number, because 135563955 - 2³ = 135563947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135563957) 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 in 31 ways as a sum of consecutive naturals, for example, 3786 + ... + 16895.

It is an arithmetic number, because the mean of its divisors is an integer number (7445520).

Almost surely, 2^135563955 is an apocalyptic number.

135563955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135563955 is a deficient number, since it is larger than the sum of its proper divisors (102692685).

135563955 is a wasteful number, since it uses less digits than its factorization.

135563955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20731.

The product of its digits is 303750, while the sum is 42.

The square root of 135563955 is about 11643.1935052201. The cubic root of 135563955 is about 513.7061245615.

The spelling of 135563955 in words is "one hundred thirty-five million, five hundred sixty-three thousand, nine hundred fifty-five".