135768618 has 24 divisors (see below), whose sum is σ = 300426048. Its totient is φ = 44293032.

The previous prime is 135768593. The next prime is 135768629. The reversal of 135768618 is 816867531.

135768618 is a `hidden beast` number, since 13 + 576 + 8 + 61 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79396 + ... + 81087.

It is an arithmetic number, because the mean of its divisors is an integer number (12517752).

Almost surely, 2^135768618 is an apocalyptic number.

135768618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

135768618 is an abundant number, since it is smaller than the sum of its proper divisors (164657430).

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

135768618 is a wasteful number, since it uses less digits than its factorization.

135768618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160538 (or 160535 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 135768618 is about 11651.9791451925. The cubic root of 135768618 is about 513.9645112694.

The spelling of 135768618 in words is "one hundred thirty-five million, seven hundred sixty-eight thousand, six hundred eighteen".