135159856845 has 128 divisors (see below), whose sum is σ = 248899682304. Its totient is φ = 62114325504.

The previous prime is 135159856841. The next prime is 135159856859. The reversal of 135159856845 is 548658951531.

It is not a de Polignac number, because 135159856845 - 2² = 135159856841 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135159856841) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 98440579 + ... + 98441951.

It is an arithmetic number, because the mean of its divisors is an integer number (1944528768).

Almost surely, 2^135159856845 is an apocalyptic number.

135159856845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135159856845 is a deficient number, since it is larger than the sum of its proper divisors (113739825459).

135159856845 is a wasteful number, since it uses less digits than its factorization.

135159856845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931.

The product of its digits is 25920000, while the sum is 60.

The spelling of 135159856845 in words is "one hundred thirty-five billion, one hundred fifty-nine million, eight hundred fifty-six thousand, eight hundred forty-five".