135187568 has 10 divisors (see below), whose sum is σ = 261925944. Its totient is φ = 67593776.

The previous prime is 135187561. The next prime is 135187579. The reversal of 135187568 is 865781531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135187561) 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 as a sum of consecutive naturals, namely, 4224596 + ... + 4224627.

Almost surely, 2^135187568 is an apocalyptic number.

It is an amenable number.

135187568 is a deficient number, since it is larger than the sum of its proper divisors (126738376).

135187568 is an equidigital number, since it uses as much as digits as its factorization.

135187568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8449231 (or 8449225 counting only the distinct ones).

The product of its digits is 201600, while the sum is 44.

The square root of 135187568 is about 11627.0188784572. The cubic root of 135187568 is about 513.2302568473.

The spelling of 135187568 in words is "one hundred thirty-five million, one hundred eighty-seven thousand, five hundred sixty-eight".