135523668153 has 4 divisors (see below), whose sum is σ = 180698224208. Its totient is φ = 90349112100.

The previous prime is 135523668151. The next prime is 135523668169. The reversal of 135523668153 is 351866325531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 135523668153 - 2¹ = 135523668151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135523668151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22587278023 + ... + 22587278028.

It is an arithmetic number, because the mean of its divisors is an integer number (45174556052).

Almost surely, 2^135523668153 is an apocalyptic number.

It is an amenable number.

135523668153 is a deficient number, since it is larger than the sum of its proper divisors (45174556055).

135523668153 is an equidigital number, since it uses as much as digits as its factorization.

135523668153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45174556054.

The product of its digits is 1944000, while the sum is 48.

The spelling of 135523668153 in words is "one hundred thirty-five billion, five hundred twenty-three million, six hundred sixty-eight thousand, one hundred fifty-three".