135505515 has 8 divisors (see below), whose sum is σ = 216808848. Its totient is φ = 72269600.

The previous prime is 135505481. The next prime is 135505529. The reversal of 135505515 is 515505531.

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

It is not a de Polignac number, because 135505515 - 2¹⁰ = 135504491 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4516836 + ... + 4516865.

It is an arithmetic number, because the mean of its divisors is an integer number (27101106).

Almost surely, 2^135505515 is an apocalyptic number.

135505515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135505515 is a deficient number, since it is larger than the sum of its proper divisors (81303333).

135505515 is an equidigital number, since it uses as much as digits as its factorization.

135505515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9033709.

The product of its (nonzero) digits is 9375, while the sum is 30.

The square root of 135505515 is about 11640.6836139464. The cubic root of 135505515 is about 513.6322964292.

The spelling of 135505515 in words is "one hundred thirty-five million, five hundred five thousand, five hundred fifteen".