135143005657161 has 16 divisors (see below), whose sum is σ = 180501509664000. Its totient is φ = 89940025582848.

The previous prime is 135143005657147. The next prime is 135143005657199. The reversal of 135143005657161 is 161756500341531.

It is not a de Polignac number, because 135143005657161 - 2¹¹ = 135143005655113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135143005657161.

It is not an unprimeable number, because it can be changed into a prime (135143005657141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8183761 + ... + 18364638.

It is an arithmetic number, because the mean of its divisors is an integer number (11281344354000).

Almost surely, 2^{135143005657161} is an apocalyptic number.

It is an amenable number.

135143005657161 is a deficient number, since it is larger than the sum of its proper divisors (45358504006839).

135143005657161 is a wasteful number, since it uses less digits than its factorization.

135143005657161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26551328.

The product of its (nonzero) digits is 1134000, while the sum is 48.

Adding to 135143005657161 its reverse (161756500341531), we get a palindrome (296899505998692).

The spelling of 135143005657161 in words is "one hundred thirty-five trillion, one hundred forty-three billion, five million, six hundred fifty-seven thousand, one hundred sixty-one".