135512541514215 has 32 divisors (see below), whose sum is σ = 240911888091840. Its totient is φ = 72273144521088.

The previous prime is 135512541514201. The next prime is 135512541514283. The reversal of 135512541514215 is 512415145215531.

135512541514215 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 1 + 2 + 5 + 415 + 14 + 215 = 666.

It is not a de Polignac number, because 135512541514215 - 2⁴ = 135512541514199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52216489 + ... + 54750221.

It is an arithmetic number, because the mean of its divisors is an integer number (7528496502870).

Almost surely, 2^{135512541514215} is an apocalyptic number.

135512541514215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135512541514215 is a deficient number, since it is larger than the sum of its proper divisors (105399346577625).

135512541514215 is a wasteful number, since it uses less digits than its factorization.

135512541514215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929920 (or 2929914 counting only the distinct ones).

The product of its digits is 600000, while the sum is 45.

Adding to 135512541514215 its reverse (512415145215531), we get a palindrome (647927686729746).

The spelling of 135512541514215 in words is "one hundred thirty-five trillion, five hundred twelve billion, five hundred forty-one million, five hundred fourteen thousand, two hundred fifteen".