134155325521 has 32 divisors (see below), whose sum is σ = 157999984128. Its totient is φ = 111532861440.

The previous prime is 134155325489. The next prime is 134155325573. The reversal of 134155325521 is 125523551431.

It is not a de Polignac number, because 134155325521 - 2⁵ = 134155325489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134155305521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46889631 + ... + 46892491.

It is an arithmetic number, because the mean of its divisors is an integer number (4937499504).

Almost surely, 2^134155325521 is an apocalyptic number.

It is an amenable number.

134155325521 is a deficient number, since it is larger than the sum of its proper divisors (23844658607).

134155325521 is a wasteful number, since it uses less digits than its factorization.

134155325521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321.

The product of its digits is 90000, while the sum is 37.

Adding to 134155325521 its reverse (125523551431), we get a palindrome (259678876952).

The spelling of 134155325521 in words is "one hundred thirty-four billion, one hundred fifty-five million, three hundred twenty-five thousand, five hundred twenty-one".