134240540161 has 16 divisors (see below), whose sum is σ = 169061436544. Its totient is φ = 103742239104.

The previous prime is 134240540141. The next prime is 134240540167. The reversal of 134240540161 is 161045042431.

It is not a de Polignac number, because 134240540161 - 2³⁵ = 99880801793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134240540167) 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, 17149236 + ... + 17157061.

It is an arithmetic number, because the mean of its divisors is an integer number (10566339784).

Almost surely, 2^134240540161 is an apocalyptic number.

It is an amenable number.

134240540161 is a deficient number, since it is larger than the sum of its proper divisors (34820896383).

134240540161 is a wasteful number, since it uses less digits than its factorization.

134240540161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34306360.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 134240540161 its reverse (161045042431), we get a palindrome (295285582592).

The spelling of 134240540161 in words is "one hundred thirty-four billion, two hundred forty million, five hundred forty thousand, one hundred sixty-one".