135677568 has 64 divisors (see below), whose sum is σ = 388130400. Its totient is φ = 41745408.

The previous prime is 135677551. The next prime is 135677587. The reversal of 135677568 is 865776531.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8598 + ... + 18581.

Almost surely, 2^135677568 is an apocalyptic number.

It is an amenable number.

135677568 is an abundant number, since it is smaller than the sum of its proper divisors (252452832).

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

135677568 is a wasteful number, since it uses less digits than its factorization.

135677568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27209 (or 27197 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The square root of 135677568 is about 11648.0714283524. The cubic root of 135677568 is about 513.8495928778.

The spelling of 135677568 in words is "one hundred thirty-five million, six hundred seventy-seven thousand, five hundred sixty-eight".