135242816 has 28 divisors (see below), whose sum is σ = 269473680. Its totient is φ = 67344000.

The previous prime is 135242791. The next prime is 135242873. The reversal of 135242816 is 618242531.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11855 + ... + 20273.

It is an arithmetic number, because the mean of its divisors is an integer number (9624060).

Almost surely, 2^135242816 is an apocalyptic number.

135242816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

135242816 is a deficient number, since it is larger than the sum of its proper divisors (134230864).

135242816 is an equidigital number, since it uses as much as digits as its factorization.

135242816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8682 (or 8672 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 135242816 is about 11629.3944812273. The cubic root of 135242816 is about 513.3001623962.

The spelling of 135242816 in words is "one hundred thirty-five million, two hundred forty-two thousand, eight hundred sixteen".