135443012015 has 16 divisors (see below), whose sum is σ = 163036618560. Its totient is φ = 108017936640.

The previous prime is 135443012009. The next prime is 135443012057. The reversal of 135443012015 is 510210344531.

It is not a de Polignac number, because 135443012015 - 2²⁴ = 135426234799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6589955 + ... + 6610475.

It is an arithmetic number, because the mean of its divisors is an integer number (10189788660).

Almost surely, 2^135443012015 is an apocalyptic number.

135443012015 is a deficient number, since it is larger than the sum of its proper divisors (27593606545).

135443012015 is a wasteful number, since it uses less digits than its factorization.

135443012015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24562.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 135443012015 its reverse (510210344531), we get a palindrome (645653356546).

The spelling of 135443012015 in words is "one hundred thirty-five billion, four hundred forty-three million, twelve thousand, fifteen".