135081768 has 32 divisors (see below), whose sum is σ = 349351200. Its totient is φ = 43474368.

The previous prime is 135081767. The next prime is 135081769. The reversal of 135081768 is 867180531.

It is an interprime number because it is at equal distance from previous prime (135081767) and next prime (135081769).

It is not an unprimeable number, because it can be changed into a prime (135081763) 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 7 ways as a sum of consecutive naturals, for example, 96346 + ... + 97737.

It is an arithmetic number, because the mean of its divisors is an integer number (10917225).

Almost surely, 2^135081768 is an apocalyptic number.

It is an amenable number.

135081768 is an abundant number, since it is smaller than the sum of its proper divisors (214269432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135081768 is a wasteful number, since it uses less digits than its factorization.

135081768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194121 (or 194117 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 135081768 is about 11622.4682404384. The cubic root of 135081768 is about 513.0963344425.

The spelling of 135081768 in words is "one hundred thirty-five million, eighty-one thousand, seven hundred sixty-eight".