135487581305 has 8 divisors (see below), whose sum is σ = 162837955392. Its totient is φ = 108221493168.

The previous prime is 135487581169. The next prime is 135487581311. The reversal of 135487581305 is 503185784531.

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

It is a cyclic number.

It is not a de Polignac number, because 135487581305 - 2¹⁰ = 135487580281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21067949 + ... + 21074378.

It is an arithmetic number, because the mean of its divisors is an integer number (20354744424).

Almost surely, 2^135487581305 is an apocalyptic number.

It is an amenable number.

135487581305 is a deficient number, since it is larger than the sum of its proper divisors (27350374087).

135487581305 is an equidigital number, since it uses as much as digits as its factorization.

135487581305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42142975.

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 135487581305 in words is "one hundred thirty-five billion, four hundred eighty-seven million, five hundred eighty-one thousand, three hundred five".