135817568 has 12 divisors (see below), whose sum is σ = 267390900. Its totient is φ = 67908768.

The previous prime is 135817559. The next prime is 135817601. The reversal of 135817568 is 865718531.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122118 + ... + 2122181.

It is an arithmetic number, because the mean of its divisors is an integer number (22282575).

Almost surely, 2^135817568 is an apocalyptic number.

It is an amenable number.

135817568 is a deficient number, since it is larger than the sum of its proper divisors (131573332).

135817568 is an equidigital number, since it uses as much as digits as its factorization.

135817568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244309 (or 4244301 counting only the distinct ones).

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

The square root of 135817568 is about 11654.0794574261. The cubic root of 135817568 is about 514.0262720804.

The spelling of 135817568 in words is "one hundred thirty-five million, eight hundred seventeen thousand, five hundred sixty-eight".