135511501001215 has 16 divisors (see below), whose sum is σ = 164226628421856. Its totient is φ = 107334019120000.

The previous prime is 135511501001183. The next prime is 135511501001231. The reversal of 135511501001215 is 512100105115531.

It is not a de Polignac number, because 135511501001215 - 2⁵ = 135511501001183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27874509 + ... + 32373001.

It is an arithmetic number, because the mean of its divisors is an integer number (10264164276366).

Almost surely, 2^{135511501001215} is an apocalyptic number.

135511501001215 is a deficient number, since it is larger than the sum of its proper divisors (28715127420641).

135511501001215 is a wasteful number, since it uses less digits than its factorization.

135511501001215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558250.

The product of its (nonzero) digits is 3750, while the sum is 31.

Adding to 135511501001215 its reverse (512100105115531), we get a palindrome (647611606116746).

The spelling of 135511501001215 in words is "one hundred thirty-five trillion, five hundred eleven billion, five hundred one million, one thousand, two hundred fifteen".