134531432161 has 16 divisors (see below), whose sum is σ = 158778081280. Its totient is φ = 111576191040.

The previous prime is 134531432137. The next prime is 134531432219. The reversal of 134531432161 is 161234135431.

It is a cyclic number.

It is not a de Polignac number, because 134531432161 - 2³⁵ = 100171693793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134531432131) 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, 1388001 + ... + 1481758.

It is an arithmetic number, because the mean of its divisors is an integer number (9923630080).

Almost surely, 2^134531432161 is an apocalyptic number.

It is an amenable number.

134531432161 is a deficient number, since it is larger than the sum of its proper divisors (24246649119).

134531432161 is a wasteful number, since it uses less digits than its factorization.

134531432161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869984.

The product of its digits is 25920, while the sum is 34.

Adding to 134531432161 its reverse (161234135431), we get a palindrome (295765567592).

The spelling of 134531432161 in words is "one hundred thirty-four billion, five hundred thirty-one million, four hundred thirty-two thousand, one hundred sixty-one".