135135343505 has 4 divisors (see below), whose sum is σ = 162162412212. Its totient is φ = 108108274800.

The previous prime is 135135343493. The next prime is 135135343517. The reversal of 135135343505 is 505343531531.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (135135343493) and next prime (135135343517).

It can be written as a sum of positive squares in 2 ways, for example, as 88782545296 + 46352798209 = 297964^2 + 215297^2 .

It is not a de Polignac number, because 135135343505 - 2¹⁴ = 135135327121 is a prime.

It is a super-2 number, since 2×135135343505² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13513534346 + ... + 13513534355.

It is an arithmetic number, because the mean of its divisors is an integer number (40540603053).

Almost surely, 2^135135343505 is an apocalyptic number.

It is an amenable number.

135135343505 is a deficient number, since it is larger than the sum of its proper divisors (27027068707).

135135343505 is an equidigital number, since it uses as much as digits as its factorization.

135135343505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27027068706.

The product of its (nonzero) digits is 202500, while the sum is 38.

The spelling of 135135343505 in words is "one hundred thirty-five billion, one hundred thirty-five million, three hundred forty-three thousand, five hundred five".