135040865 has 8 divisors (see below), whose sum is σ = 162571968. Its totient is φ = 107684080.

The previous prime is 135040853. The next prime is 135040879. The reversal of 135040865 is 568040531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135040865 - 2¹⁶ = 134975329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 41867 + ... + 44976.

It is an arithmetic number, because the mean of its divisors is an integer number (20321496).

Almost surely, 2^135040865 is an apocalyptic number.

It is an amenable number.

135040865 is a deficient number, since it is larger than the sum of its proper divisors (27531103).

135040865 is an equidigital number, since it uses as much as digits as its factorization.

135040865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87159.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 135040865 is about 11620.7084551674. The cubic root of 135040865 is about 513.0445403863.

The spelling of 135040865 in words is "one hundred thirty-five million, forty thousand, eight hundred sixty-five".